Question

过去一周，我一直在学习HTML和CSS，并决定使用导航栏。我已经全部设置好了，但是现在顶部的链接不可点击了吗？我已检查以确保没有错过任何基本信息，例如结束标记，但找不到类似的东西。

* {
  margin: 0;
  padding: 0;
}

html {
  background-color: #808080;
  background-image: url("https://hdqwalls.com/download/simple-gray-abstract-background-wi-1920x1080.jpg");
  background-repeat: no-repeat;
}

#landing__container {
  height: 100vh;
  width: 100%;
}

header {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(255, 0, 0, 0.4);
}

header h1 {
  color: white;
  font-family: impact;
  font-weight: normal;
}

header ul {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  height: 30px;
}

header ul li {
  list-style: none;
}

header a {
  font-family: helvetica;
  font-weight: bold;
  font-size: 18px;
  text-decoration: none;
  color: white;
  margin: 30px;
}

#landing__center {
  display: flex;
  flex-direction: column;
  text-align: center;
  justify-content: center;
  align-items: center;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  position: absolute;
}

#landing__center h2 {
  padding-bottom: 20px;
  color: white;
  font-family: Impact;
  font-weight: normal;
  font-size: 40px;
}

#landing__center p {
  padding-top: 20px;
  color: white;
  font-family: helvetica;
  font-weight: normal;
  font-size: 20px;
}

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Navigation Bar Practice</title>
    <link rel="stylesheet" type="text/css" href="style.css" />
  </head>

  <body>
    <div id="landing__container">
      <!-- Navigation Bar -->
      <header>
        <nav id="nav__bar">
          <ul>
            <li><a href="#">Home</a></li>
            <li><a href="#">Documentation</a></li>
            <li><a href="#">About</a></li>
            <li><a href="#">Contact</a></li>
          </ul>
        </nav>
      </header>

      <section id="landing__center">
        <h2>Testing</h2>
        <p>
          Lorem, ipsum dolor sit amet consectetur adipisicing elit. Rem
          voluptatum asperiores illum maiores aliquid quo perferendis,
          blanditiis facere temporibus laudantium!
        </p>
      </section>
    </div>
  </body>
</html>

我知道代码可能并不完美和/或干净，但是请记住，我已经做了一周了。

Answer 1

您已完成本节#landing__center position:absolute和top:0的内容，这就是它出现在导航栏顶部的原因。我将排名提高到30位。谢谢

* {
  margin: 0;
  padding: 0;
}

html {
  background-color: #808080;
  background-image: url("https://hdqwalls.com/download/simple-gray-abstract-background-wi-1920x1080.jpg");
  background-repeat: no-repeat;
}

#landing__container {
  height: 100vh;
  width: 100%;
}

header {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(255, 0, 0, 0.4);
}

header h1 {
  color: white;
  font-family: impact;
  font-weight: normal;
}

header ul {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  height: 30px;
}

header ul li {
  list-style: none;
}

header a {
  font-family: helvetica;
  font-weight: bold;
  font-size: 18px;
  text-decoration: none;
  color: white;
  margin: 30px;
}

#landing__center {
  display: flex;
  flex-direction: column;
  text-align: center;
  justify-content: center;
  align-items: center;
  top: 30; /*changed*/
  bottom: 0;
  left: 0;
  right: 0;
  position: absolute;
}

#landing__center h2 {
  padding-bottom: 20px;
  color: white;
  font-family: Impact;
  font-weight: normal;
  font-size: 40px;
}

#landing__center p {
  padding-top: 20px;
  color: white;
  font-family: helvetica;
  font-weight: normal;
  font-size: 20px;
}

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Navigation Bar Practice</title>
    <link rel="stylesheet" type="text/css" href="style.css" />
  </head>

  <body>
    <div id="landing__container">
      <!-- Navigation Bar -->
      <header>
        <nav id="nav__bar">
          <ul>
            <li><a href="#">Home</a></li>
            <li><a href="#">Documentation</a></li>
            <li><a href="#">About</a></li>
            <li><a href="#">Contact</a></li>
          </ul>
        </nav>
      </header>

      <section id="landing__center">
        <h2>Testing</h2>
        <p>
          Lorem, ipsum dolor sit amet consectetur adipisicing elit. Rem
          voluptatum asperiores illum maiores aliquid quo perferendis,
          blanditiis facere temporibus laudantium!
        </p>
      </section>
    </div>
  </body>
</html>

Answer 2

您需要在代码中添加z-index和position: relative

header{
  z-index: 1;
  position: relative;
}

Answer 3

该问题是由#landing__center覆盖了导航栏引起的，因为它选择了#landing__container作为与之相对的元素

一种方法是创建一个包装器，该包装器将充当#landing__center的容器，而不是 #landing__container。这样它相对于自己的容器而不是其父容器，而不干扰其同级容器

* {
  margin: 0;
  padding: 0;
}

html {
  background-color: #808080;
  background-image: url("https://hdqwalls.com/download/simple-gray-abstract-background-wi-1920x1080.jpg");
  background-repeat: no-repeat;
}

#landing__container {
  height: 100vh;
  width: 100%;
}

header {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(255, 0, 0, 0.4);
}

header h1 {
  color: white;
  font-family: impact;
  font-weight: normal;
}

header ul {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  height: 30px;
}

header ul li {
  list-style: none;
}

header a {
  font-family: helvetica;
  font-weight: bold;
  font-size: 18px;
  text-decoration: none;
  color: white;
  margin: 30px;
}

.wrapper {
  position: relative;
  height: 95%;
}

#landing__center {
  display: flex;
  flex-direction: column;
  text-align: center;
  justify-content: center;
  align-items: center;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  position: absolute;
}

#landing__center h2 {
  padding-bottom: 20px;
  color: white;
  font-family: Impact;
  font-weight: normal;
  font-size: 40px;
}

#landing__center p {
  padding-top: 20px;
  color: white;
  font-family: helvetica;
  font-weight: normal;
  font-size: 20px;
}

<body>
  <div id="landing__container">
    <!-- Navigation Bar -->
    <header>
      <nav id="nav__bar">
        <ul>
          <li><a href="#">Home</a></li>
          <li><a href="#">Documentation</a></li>
          <li><a href="#">About</a></li>
          <li><a href="#">Contact</a></li>
        </ul>
      </nav>
    </header>

    <div class="wrapper">
      <section id="landing__center">
        <h2>Testing</h2>
        <p>
          Lorem, ipsum dolor sit amet consectetur adipisicing elit. Rem voluptatum asperiores illum maiores aliquid quo perferendis, blanditiis facere temporibus laudantium!
        </p>
      </section>
    </div>
  </div>
</body>

HTML导航栏链接不可单击

3 个答案: