Pourquoi mon bouton qui se chevauchent ma barre de navigation lorsque le défilement?

Question 1

C'est ma première fois de la création d'un site web pour un projet d'école ainsi de garder avec mon code désordre. Mon problème est que lorsque je scroll avec ma barre de navigation qui colle vers le haut et il croise sur mon bouton en Savoir Plus, le bouton chevauche sur la barre de navigation. Personne ne sait comment résoudre ce problème?

.container {
  position: sticky;
  top: 0;
  position: -webkit-sticky;
  background: #FACABC;
}

nav {
  z-index: 9999;
}


/* Nav bar*/

.container nav {
  width: 100%;
  height: 76px;
  font-size: 48px;
  padding-left: 7em;
  /* Centers "Home, About me, Socials, etc" text */
}

.container nav a {
  text-align: center;
  text-decoration: none;
  color: #987b74;
  padding-right: 100px;
}

.container nav ul {
  width: 100%;
  height: 100%;
  margin: 0 auto;
  list-style-type: none;
  transition: all 0.5s ease;
}

.container nav ul li {
  width: 10%;
  float: left;
  text-align: center;
  color: #987b74;
  font-size: 41px;
  font-weight: bold;
  transition: all 0.5s ease;
  position: sticky;
  cursor: pointer;
  top: 0;
}

.container nav ul li:hover {
  color: #5E4C47;
}

.container nav ul li ul.sub-nav {
  position: absolute;
  background: white;
  /* Background of drop down */
  width: 75%;
  height: 110px;
  box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.14), -1px 0px 1px rgba(0, 0, 0, 0.14);
  top: 75px;
  left: 0;
  visibility: hidden;
  opacity: 0;
}

.container nav ul li ul.sub-nav li {
  font-size: 31px;
  font-family: primer, "Times New Roman", sans-sarif;
  width: 75%;
}

.container nav ul li:hover ul.sub-nav
/* Drop down menu visibility */

{
  visibility: visible;
  opacity: 75%;
  margin-top: 2px;
}

.container li {
  display: inline-block;
}

.container nav ul li ul.sub-nav a:hover {
  color: #5E4C47;
  transition: all 0.5s ease;
}

.container nav ul li ul.sub-nav a {
  padding: 0;
}

main h2 {
  padding-right: 10em;
  padding-left: 10em;
}

main .learn-more {
  border-radius: 2px;
  background-color: #FACABC;
  border: none;
  color: #987b74;
  text-align: center;
  font-size: 28px;
  padding: 20px;
  width: 275px;
  transition: all 0.5s;
  cursor: pointer;
  margin: 0;
  position: absolute;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  font-family: primer, "Times New Roman", sans-sarif;
}

main .learn-more span {
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
}

main .learn-more span:after {
  content: '\00bb';
  position: absolute;
  opacity: 0;
  top: 0;
  right: -20px;
  transition: 0.5s;
}

main .learn-more:hover span {
  padding-right: 25px;
}

main .learn-more:hover span:after {
  opacity: 1;
  right: 0;
}

<div id="wrapper">
  <title>HighItsKy</title>
  <link href="highitsky.css" rel="stylesheet">
  <link href="http://fonts.cdnfonts.com/css/redrock" rel="stylesheet">
  <link href="http://fonts.cdnfonts.com/css/primer" rel="stylesheet">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">

  <body>
    <header>
      <a id="homelink" href="index.html">
        <h2 id="homelink">HighItsKy</h2>
      </a>
      <br><br><br>
      <br>
      <span class="title"><h1>HighItsKy</h1></span>
      <h2>part time streamer, full time vibe</h2>
      <br><br>
      <a href="https://www.twitch.tv/highitsky/" target="_blank">
        <ion-icon name="logo-twitch"></ion-icon>
      </a>
      <a href="https://discord.gg/M2umXEhkNq" target="_blank">
        <ion-icon name="logo-discord"></ion-icon>
      </a>
      <a href="https://youtube.com/highitsky" target="_blank">
        <ion-icon name="logo-youtube"></ion-icon>
      </a>
      <a href="https://www.instagram.com/highitsky_/" target="_blank">
        <ion-icon name="logo-instagram"></ion-icon>
      </a>
      <a href="https://www.tiktok.com/@highitsky" target="_blank">
        <ion-icon name="logo-tiktok"></ion-icon>
      </a>
      <a href="https://www.twitter.com/highitsky_/" target="_blank">
        <ion-icon name="logo-twitter"></ion-icon>
      </a>
      <script type="module" src="https://unpkg.com/[email protected]/dist/ionicons/ionicons.esm.js"></script>
      <script nomodule src="https://unpkg.com/[email protected]/dist/ionicons/ionicons.js"></script>
      <br><br><br><br><br>
    </header>
    <div class="container">
      <nav>
        <ul>
          <a href="index.html">
            <li>Home</li>
          </a>
          <li>About Me
            <ul class="sub-nav">
              <a href="AboutMe.html">
                <li>ABOUT</li>
              </a>
              <a href="Cloves.html">
                <li>CLOVES</li>
              </a>
            </ul>
          </li>
          <li>Socials
            <ul class="sub-nav">
              <a href="Socials.html">
                <li>SOCIALS</li>
              </a>
              <a href="Contact.html">
                <li>CONTACT</li>
              </a>
            </ul>
          </li>
          <a href="Community.html">
            <li>Community</li>
          </a>
          <a href="Partnerships.html">
            <li>Partnerships</li>
          </a>
          <li>Support
            <ul class="sub-nav">
              <a href="Donate.html">
                <li>DONATE</li>
              </a>
              <a href="Merch.html">
                <li>MERCH</li>
              </a>
              <a href="Organizations.html">
                <li>OTHER</li>
              </a>
            </ul>
          </li>
        </ul>
      </nav>
      <div class="header"></div>
    </div>
    <main>
      <div class="backgroundcolor">
        <br><br>
        <h1>High, I'm Ky
          <h1><br>
            <h2>I started streaming on . . . </h2>
            <br>
            <a href="AboutMe.html"><button class="learn-more"><span>LEARN MORE </span></button></a>
            <br><br><br><br><br>
      </div>
      <div class="video-trailer">
        <br><br>
        <h2>My streams consist of a lot of yelling, dying, losing, and sometimes crying, but...</h2>
        <br><br>
        <center>
          <video controls="controls" height="64%" width="62%" style='border: 2px solid #FACABC;'>
        <source src="trailer.mp4" type="video/mp4">
    </video>
          <br><br>
          <h2>what matters is that I get to spend time with the people that I love; my community!</h2>
          <br><br>
      </div>
      <div class="backgroundcolor">
        <br><br>
        <h1>High-lights</h1>
        <br><br>
        <hr size="2" color="#987b74">
        <br><br>
        <ul>
          <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/HQQ3LfzPrEI" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
          </li>
          <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/zNUe4U8ps5k" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
          </li>
          <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/Sh7yxSijuxI" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
          </li>
          <br><br>
          <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/PGgvM_9pZok" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
          </li>
          <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/S_M8JgzfdW4" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>

          </li>
          <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/Pk0GZE-3EqQ" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
          </li>
        </ul>
        <br><br>
        <hr size="2" color="#987b74">
        <footer>HighItsKy &copy; 2020 </footer>
      </div>
    </main>

Question 2

Ici, vous allez, z-index, c'est très bon pour ça. Lorsque vous avez z-index, c'est en gros ce que vous voulez en avant. Donc ici, je l'ai mis z-index dans le .container de la classe, et vous pouvez voir que la barre de navigation est toujours à l'avant.

.container
{
    position: sticky;
    top: 0;
    position: -webkit-sticky;
    background: #FACABC;
    z-index:1;
}
    
nav
{

    z-index: 9999;
}
/* Nav bar*/
.container nav
{
    width: 100%;
    height: 76px;
    
    
    font-size: 48px;
    padding-left: 7em; /* Centers "Home, About me, Socials, etc" text */
}
.container nav a
{
    text-align: center;
    text-decoration: none;
    color: #987b74;
    padding-right: 100px;
}
.container nav ul
{
    width: 100%;
    height: 100%;
    margin: 0 auto;
    list-style-type: none;
    transition: all 0.5s ease;
}
.container nav ul li
{
    width: 10%;
    float: left;
    text-align: center;
    color: #987b74;
    font-size: 41px;
    font-weight: bold;
    transition: all 0.5s ease;
    position: sticky;
    cursor: pointer;
    top: 0;
}
.container nav ul li:hover
{
    color: #5E4C47;
}   
.container nav ul li ul.sub-nav 
{
    position: absolute;
    background: white; /* Background of drop down */
    width: 75%;
    height: 110px;
    box-shadow: 1px 1px 2px rgba(0,0,0,0.14), -1px 0px 1px rgba(0,0,0,0.14);
    top: 75px;
    left: 0;
    visibility: hidden;
    opacity: 0;
}
.container nav ul li ul.sub-nav li
{

    font-size: 31px;
    font-family: primer, "Times New Roman", sans-sarif;
    width: 75%;
}

.container nav ul li:hover ul.sub-nav /* Drop down menu visibility */
{
    visibility: visible;
    opacity: 75%;
    margin-top: 2px;
}
.container li
{
    display: inline-block;
}
.container nav ul li ul.sub-nav a:hover
{
    color: #5E4C47;
    transition: all 0.5s ease;
}
.container nav ul li ul.sub-nav a
{
    padding: 0;
}
main h2
{
    padding-right: 10em;
    padding-left: 10em;
}
main .learn-more {
  border-radius: 2px;
  background-color: #FACABC;
  border: none;
  color: #987b74;
  text-align: center;
  font-size: 28px;
  padding: 20px;
  width: 275px;
  transition: all 0.5s;
  cursor: pointer;
  margin: 0;
  position: absolute;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
font-family: primer, "Times New Roman", sans-sarif;
}

main .learn-more span {
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
}

main .learn-more span:after {
  content: '\00bb';
  position: absolute;
  opacity: 0;
  top: 0;
  right: -20px;
  transition: 0.5s;
}

main .learn-more:hover span {
  padding-right: 25px;
}

main .learn-more:hover span:after {
  opacity: 1;
  right: 0;
}

<!DOCTYPE html>
<div id="wrapper">
<title>HighItsKy</title>
<link href="highitsky.css" rel="stylesheet">
<link href="http://fonts.cdnfonts.com/css/redrock" rel="stylesheet">
<link href="http://fonts.cdnfonts.com/css/primer" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">     
<body>
    <header>
        <a id="homelink" href="index.html"><h2 id="homelink">HighItsKy</h2></a>
        <br><br><br>
        <br>
        <span class="title"><h1>HighItsKy</h1></span>
        <h2>part time streamer, full time vibe</h2>
        <br><br>
        <a href="https://www.twitch.tv/highitsky/" target="_blank"><ion-icon name="logo-twitch"></ion-icon></a>
        <a href="https://discord.gg/M2umXEhkNq" target="_blank"><ion-icon name="logo-discord"></ion-icon></a>
        <a href="https://youtube.com/highitsky" target="_blank"><ion-icon name="logo-youtube"></ion-icon></a>
        <a href="https://www.instagram.com/highitsky_/" target="_blank"><ion-icon name="logo-instagram"></ion-icon></a>
        <a href="https://www.tiktok.com/@highitsky" target="_blank"><ion-icon name="logo-tiktok"></ion-icon></a>
        <a href="https://www.twitter.com/highitsky_/" target="_blank"><ion-icon name="logo-twitter"></ion-icon></a>
        <script type="module" src="https://unpkg.com/[email protected]/dist/ionicons/ionicons.esm.js"></script>
        <script nomodule src="https://unpkg.com/[email protected]/dist/ionicons/ionicons.js"></script>
        <br><br><br><br><br>
    </header>
    <div class="container">
    <nav>
        <ul>
            <a href="index.html"><li>Home</li></a>
            <li>About Me
                <ul class="sub-nav">
                    <a href="AboutMe.html"><li>ABOUT</li></a>
                    <a href="Cloves.html"><li>CLOVES</li></a>
                </ul>
            </li>
            <li>Socials
                <ul class="sub-nav">
                    <a href="Socials.html"><li>SOCIALS</li></a>
                    <a href="Contact.html"><li>CONTACT</li></a>
                </ul></li>
            <a href="Community.html"><li>Community</li></a>
            <a href="Partnerships.html"><li>Partnerships</li></a>
            <li>Support
                <ul class="sub-nav">
                    <a href="Donate.html"><li>DONATE</li></a>
                    <a href="Merch.html"><li>MERCH</li></a>
                    <a href="Organizations.html"><li>OTHER</li></a>
                </ul></li>
        </ul>
    </nav>
        <div class="header"></div>
    </div>
<main>
<div class="backgroundcolor">
    <br><br><h1>High, I'm Ky<h1><br>
    <h2>I started streaming on Twitch in February of 2020, with my streams mainly consisting of Minecraft content! 
    Whether I am dying a lot in Singleplayer or getting scared by creepers, my main focus is maintaining a positive and welcoming 
    community in a not-so-welcoming world. I currently live in Kansas, and I am 19 years old and majoring in Computer Science at FHSU. . . </h2>
    <br>
    <a href="AboutMe.html"><button class="learn-more"><span>LEARN MORE </span></button></a>
    <br><br><br><br><br>
</div>
    <div class="video-trailer">
    <br><br>
        <h2>My streams consist of a lot of yelling, dying, losing, and sometimes crying, but...</h2>
    <br><br>
    <center>
    <video controls="controls" height="64%" width="62%" style='border: 2px solid #FACABC;'>
        <source src="trailer.mp4" type="video/mp4">
    </video>
    <br><br>
        <h2>what matters is that I get to spend time with the people that I love; my community!</h2>
    <br><br>
    </div>
<div class="backgroundcolor">
    <br><br>
    <h1>High-lights</h1>
    <br><br>
    <hr size="2" color="#987b74">
    <br><br>
    <ul>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/HQQ3LfzPrEI" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
        </li>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/zNUe4U8ps5k" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
        </li>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/Sh7yxSijuxI" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
        </li>
        <br><br>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/PGgvM_9pZok" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
        </li>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/S_M8JgzfdW4" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
            
        </li>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/Pk0GZE-3EqQ" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
        </li>
    </ul>
    <br><br>
    <hr size="2" color="#987b74">
<footer>HighItsKy &copy; 2020 </footer>
</div>
</main>

Question 3

Afin de s'assurer que la barre de navigation au-dessus de tout autre élément de la page, vous devez déplacer le z-index la valeur que vous avez sur le nav sélecteur de la .container classe.

Les deux css éléments deviennent alors:

.container
{
    position: sticky;
    top: 0;
    position: -webkit-sticky;
    background: #FACABC;
    z-index: 9999;
}
    
nav
{
    
}

Veuillez noter que, même si elle n'a pas d'incidence sur la question d'actualité, je vous encourage fortement à restructurer le code HTML. Valide d'un document HTML est le suivant haut de la structure:

<!DOCTYPE html>
<html>
    <head>
        <title>HighItsKy</title>
        <link href="highitsky.css" rel="stylesheet">
        <!-- other links and meta-information -->
    </head>
    <body>
        <!-- all visible elements from the document: div, p, span ... -->
    </body>
</html>

Tous les autres éléments que vous souhaitez ajouter à <head>...</head> section (scripts externes ou CSS, la méta-information) ou <body>...</body> section (éléments visibles).

Coja · Answer 1 · 2021-11-22T20:22:57

Ici, vous allez, z-index, c'est très bon pour ça. Lorsque vous avez z-index, c'est en gros ce que vous voulez en avant. Donc ici, je l'ai mis z-index dans le .container de la classe, et vous pouvez voir que la barre de navigation est toujours à l'avant.

.container
{
    position: sticky;
    top: 0;
    position: -webkit-sticky;
    background: #FACABC;
    z-index:1;
}
    
nav
{

    z-index: 9999;
}
/* Nav bar*/
.container nav
{
    width: 100%;
    height: 76px;
    
    
    font-size: 48px;
    padding-left: 7em; /* Centers "Home, About me, Socials, etc" text */
}
.container nav a
{
    text-align: center;
    text-decoration: none;
    color: #987b74;
    padding-right: 100px;
}
.container nav ul
{
    width: 100%;
    height: 100%;
    margin: 0 auto;
    list-style-type: none;
    transition: all 0.5s ease;
}
.container nav ul li
{
    width: 10%;
    float: left;
    text-align: center;
    color: #987b74;
    font-size: 41px;
    font-weight: bold;
    transition: all 0.5s ease;
    position: sticky;
    cursor: pointer;
    top: 0;
}
.container nav ul li:hover
{
    color: #5E4C47;
}   
.container nav ul li ul.sub-nav 
{
    position: absolute;
    background: white; /* Background of drop down */
    width: 75%;
    height: 110px;
    box-shadow: 1px 1px 2px rgba(0,0,0,0.14), -1px 0px 1px rgba(0,0,0,0.14);
    top: 75px;
    left: 0;
    visibility: hidden;
    opacity: 0;
}
.container nav ul li ul.sub-nav li
{

    font-size: 31px;
    font-family: primer, "Times New Roman", sans-sarif;
    width: 75%;
}

.container nav ul li:hover ul.sub-nav /* Drop down menu visibility */
{
    visibility: visible;
    opacity: 75%;
    margin-top: 2px;
}
.container li
{
    display: inline-block;
}
.container nav ul li ul.sub-nav a:hover
{
    color: #5E4C47;
    transition: all 0.5s ease;
}
.container nav ul li ul.sub-nav a
{
    padding: 0;
}
main h2
{
    padding-right: 10em;
    padding-left: 10em;
}
main .learn-more {
  border-radius: 2px;
  background-color: #FACABC;
  border: none;
  color: #987b74;
  text-align: center;
  font-size: 28px;
  padding: 20px;
  width: 275px;
  transition: all 0.5s;
  cursor: pointer;
  margin: 0;
  position: absolute;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
font-family: primer, "Times New Roman", sans-sarif;
}

main .learn-more span {
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
}

main .learn-more span:after {
  content: '\00bb';
  position: absolute;
  opacity: 0;
  top: 0;
  right: -20px;
  transition: 0.5s;
}

main .learn-more:hover span {
  padding-right: 25px;
}

main .learn-more:hover span:after {
  opacity: 1;
  right: 0;
}

<!DOCTYPE html>
<div id="wrapper">
<title>HighItsKy</title>
<link href="highitsky.css" rel="stylesheet">
<link href="http://fonts.cdnfonts.com/css/redrock" rel="stylesheet">
<link href="http://fonts.cdnfonts.com/css/primer" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">     
<body>
    <header>
        <a id="homelink" href="index.html"><h2 id="homelink">HighItsKy</h2></a>
        <br><br><br>
        <br>
        <span class="title"><h1>HighItsKy</h1></span>
        <h2>part time streamer, full time vibe</h2>
        <br><br>
        <a href="https://www.twitch.tv/highitsky/" target="_blank"><ion-icon name="logo-twitch"></ion-icon></a>
        <a href="https://discord.gg/M2umXEhkNq" target="_blank"><ion-icon name="logo-discord"></ion-icon></a>
        <a href="https://youtube.com/highitsky" target="_blank"><ion-icon name="logo-youtube"></ion-icon></a>
        <a href="https://www.instagram.com/highitsky_/" target="_blank"><ion-icon name="logo-instagram"></ion-icon></a>
        <a href="https://www.tiktok.com/@highitsky" target="_blank"><ion-icon name="logo-tiktok"></ion-icon></a>
        <a href="https://www.twitter.com/highitsky_/" target="_blank"><ion-icon name="logo-twitter"></ion-icon></a>
        <script type="module" src="https://unpkg.com/[email protected]/dist/ionicons/ionicons.esm.js"></script>
        <script nomodule src="https://unpkg.com/[email protected]/dist/ionicons/ionicons.js"></script>
        <br><br><br><br><br>
    </header>
    <div class="container">
    <nav>
        <ul>
            <a href="index.html"><li>Home</li></a>
            <li>About Me
                <ul class="sub-nav">
                    <a href="AboutMe.html"><li>ABOUT</li></a>
                    <a href="Cloves.html"><li>CLOVES</li></a>
                </ul>
            </li>
            <li>Socials
                <ul class="sub-nav">
                    <a href="Socials.html"><li>SOCIALS</li></a>
                    <a href="Contact.html"><li>CONTACT</li></a>
                </ul></li>
            <a href="Community.html"><li>Community</li></a>
            <a href="Partnerships.html"><li>Partnerships</li></a>
            <li>Support
                <ul class="sub-nav">
                    <a href="Donate.html"><li>DONATE</li></a>
                    <a href="Merch.html"><li>MERCH</li></a>
                    <a href="Organizations.html"><li>OTHER</li></a>
                </ul></li>
        </ul>
    </nav>
        <div class="header"></div>
    </div>
<main>
<div class="backgroundcolor">
    <br><br><h1>High, I'm Ky<h1><br>
    <h2>I started streaming on Twitch in February of 2020, with my streams mainly consisting of Minecraft content! 
    Whether I am dying a lot in Singleplayer or getting scared by creepers, my main focus is maintaining a positive and welcoming 
    community in a not-so-welcoming world. I currently live in Kansas, and I am 19 years old and majoring in Computer Science at FHSU. . . </h2>
    <br>
    <a href="AboutMe.html"><button class="learn-more"><span>LEARN MORE </span></button></a>
    <br><br><br><br><br>
</div>
    <div class="video-trailer">
    <br><br>
        <h2>My streams consist of a lot of yelling, dying, losing, and sometimes crying, but...</h2>
    <br><br>
    <center>
    <video controls="controls" height="64%" width="62%" style='border: 2px solid #FACABC;'>
        <source src="trailer.mp4" type="video/mp4">
    </video>
    <br><br>
        <h2>what matters is that I get to spend time with the people that I love; my community!</h2>
    <br><br>
    </div>
<div class="backgroundcolor">
    <br><br>
    <h1>High-lights</h1>
    <br><br>
    <hr size="2" color="#987b74">
    <br><br>
    <ul>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/HQQ3LfzPrEI" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
        </li>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/zNUe4U8ps5k" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
        </li>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/Sh7yxSijuxI" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
        </li>
        <br><br>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/PGgvM_9pZok" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
        </li>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/S_M8JgzfdW4" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
            
        </li>
        <li>
            <iframe width="560" height="315" src="https://www.youtube.com/embed/Pk0GZE-3EqQ" 
            title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; 
            encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
            </iframe>
        </li>
    </ul>
    <br><br>
    <hr size="2" color="#987b74">
<footer>HighItsKy &copy; 2020 </footer>
</div>
</main>

Teodor · Answer 2 · 2021-11-22T20:40:50

Afin de s'assurer que la barre de navigation au-dessus de tout autre élément de la page, vous devez déplacer le z-index la valeur que vous avez sur le nav sélecteur de la .container classe.

Les deux css éléments deviennent alors:

.container
{
    position: sticky;
    top: 0;
    position: -webkit-sticky;
    background: #FACABC;
    z-index: 9999;
}
    
nav
{
    
}

Veuillez noter que, même si elle n'a pas d'incidence sur la question d'actualité, je vous encourage fortement à restructurer le code HTML. Valide d'un document HTML est le suivant haut de la structure:

<!DOCTYPE html>
<html>
    <head>
        <title>HighItsKy</title>
        <link href="highitsky.css" rel="stylesheet">
        <!-- other links and meta-information -->
    </head>
    <body>
        <!-- all visible elements from the document: div, p, span ... -->
    </body>
</html>

Tous les autres éléments que vous souhaitez ajouter à <head>...</head> section (scripts externes ou CSS, la méta-information) ou <body>...</body> section (éléments visibles).

Pourquoi mon bouton qui se chevauchent ma barre de navigation lorsque le défilement?

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