居中对齐文字

时间：2017-11-21 22:56:27

标签： html css css3 flexbox

此页面的主要h1和p标签拒绝居中。我是一个新的学习者，它可能是我所忽略的简单事物;但我不能把手指放在它上面！

我已经尝试了多种方法将这一点（.content和.header，甚至*）设置为text-align: center;，但没有任何效果。甚至*！所以必须有一些东西＆＃34;阻止＆＃34;此？

提前感谢您提供的任何提示！

＆＃13;
＆＃13; 
*{
  box-sizing: border-box;
  text-align: center;
}

body {
margin: 0;
font-family: sans-serif;
font-size: 20px;
line-height: 1.5;
color: #333;
overflow-x: hidden;
}

.v-header{
  height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
}

.container {
  max-width: 960px;
  padding-left: 1rem;
  padding-right: 1rem;
  margin: auto;
  text-align: center;
}

.video-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.video-wrap video {
  min-width: 100%;
  min-height: 100%;
}

.overlay {
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background: #225470;
  z-index: 1;
  opacity: 0.55;
}

.content {
  z-index: 2;
}

.content h1 {
  font-size: 50px;
  margin-bottom: 0px;
}

.content p {
  font-size: 25px;
  display: block;
  padding-bottom: 20px;
}

.btn {
  background: #34b3a0;
  color: #fff;
  font-size: 15px;
  padding: 15px 20px;
  text-decoration: none;
}

.section {
  padding: 20px 0px;
}

.section-b {
  background: #34b3a0;
  color: #fff;
}

@media(max-width: 960px) {
  .container {
    padding-right: 30px;
    padding-left: 30px;
  }
}
＆＃13; 
<!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">
  <link rel="stylesheet" href="style.css">
  <title>Document</title>
</head>

<body>
  <!-- Container section will contain the entire landing page -->
  <header class= "v-header container">
  <!-- Video-Wrap section will contain the video -->
    <div class= "video-wrap">
      <video src="images/media2.mp4" autoplay="true" loop="true"></video>
    </div>
  <!-- Overlay section will be over the video, styled with CSS -->
      <div class= "overlay">  </div>
  <!-- Content will contain the actual content on the landing page with links to other pages -->
    <div class="content">
      <h1>Coffee R Us</h1>
      <p>If you like coffee, you'll love us!</p>
      <a href="#" class= "btn">About us</a>
      <a href="#" class= "btn">Our Menu</a>
    </div>

  </header>

<!-- Sections will appear BELOW the wrapper video -->
  <section class="section-a">
    <div>
      <h1>Section A - Thing 1</h1>
      <p> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint laborum veniam quae non nesciunt enim deleniti soluta molestias molestiae dolorem.</p>
    </div>
  </section>

  <section class="section-b">
    <div>
      <h1>Section B - Thing 1</h1>
      <p> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint laborum veniam quae non nesciunt enim deleniti soluta molestias molestiae dolorem.</p>
    </div>
  </section>

</body>

</html>
＆＃13;
＆＃13;
＆＃13;

5 个答案:

答案 0 :(得分：0)

将margin: 0 auto;添加到.content以使其居中 - 这是包装所有这些文本的元素，并且它不会跨越整个窗口宽度，因此您必须将其居中。

*{
  box-sizing: border-box;
  text-align: center;
}

body {
margin: 0;
font-family: sans-serif;
font-size: 20px;
line-height: 1.5;
color: #333;
overflow-x: hidden;
}

.v-header{
  height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
}

.container {
  max-width: 960px;
  padding-left: 1rem;
  padding-right: 1rem;
  margin: auto;
  text-align: center;
}

.video-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.video-wrap video {
  min-width: 100%;
  min-height: 100%;
}

.overlay {
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background: #225470;
  z-index: 1;
  opacity: 0.55;
}

.content {
  z-index: 2;
  margin: 0 auto;
}

.content h1 {
  font-size: 50px;
  margin-bottom: 0px;
}

.content p {
  font-size: 25px;
  display: block;
  padding-bottom: 20px;
}

.btn {
  background: #34b3a0;
  color: #fff;
  font-size: 15px;
  padding: 15px 20px;
  text-decoration: none;
}

.section {
  padding: 20px 0px;
}

.section-b {
  background: #34b3a0;
  color: #fff;
}

@media(max-width: 960px) {
  .container {
    padding-right: 30px;
    padding-left: 30px;
  }
}
<!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">
  <link rel="stylesheet" href="style.css">
  <title>Document</title>
</head>

<body>
  <!-- Container section will contain the entire landing page -->
  <header class= "v-header container">
  <!-- Video-Wrap section will contain the video -->
    <div class= "video-wrap">
      <video src="images/media2.mp4" autoplay="true" loop="true"></video>
    </div>
  <!-- Overlay section will be over the video, styled with CSS -->
      <div class= "overlay">  </div>
  <!-- Content will contain the actual content on the landing page with links to other pages -->
    <div class="content">
      <h1>Coffee R Us</h1>
      <p>If you like coffee, you'll love us!</p>
      <a href="#" class= "btn">About us</a>
      <a href="#" class= "btn">Our Menu</a>
    </div>

  </header>

<!-- Sections will appear BELOW the wrapper video -->
  <section class="section-a">
    <div>
      <h1>Section A - Thing 1</h1>
      <p> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint laborum veniam quae non nesciunt enim deleniti soluta molestias molestiae dolorem.</p>
    </div>
  </section>

  <section class="section-b">
    <div>
      <h1>Section B - Thing 1</h1>
      <p> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint laborum veniam quae non nesciunt enim deleniti soluta molestias molestiae dolorem.</p>
    </div>
  </section>

</body>

</html>

答案 1 :(得分：0)

添加content

，使width:100%全宽

＆＃13;
＆＃13; 
*{
  box-sizing: border-box;
  text-align: center;
}

body {
margin: 0;
font-family: sans-serif;
font-size: 20px;
line-height: 1.5;
color: #333;
overflow-x: hidden;
}

.v-header{
  height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
}

.container {
  max-width: 960px;
  padding-left: 1rem;
  padding-right: 1rem;
  margin: auto;
  text-align: center;
}

.video-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.video-wrap video {
  min-width: 100%;
  min-height: 100%;
}

.overlay {
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background: #225470;
  z-index: 1;
  opacity: 0.55;
}

.content {
  z-index: 2;
  width:100%;
}

.content h1 {
  font-size: 50px;
  margin-bottom: 0px;
}

.content p {
  font-size: 25px;
  display: block;
  padding-bottom: 20px;
}

.btn {
  background: #34b3a0;
  color: #fff;
  font-size: 15px;
  padding: 15px 20px;
  text-decoration: none;
}

.section {
  padding: 20px 0px;
}

.section-b {
  background: #34b3a0;
  color: #fff;
}

@media(max-width: 960px) {
  .container {
    padding-right: 30px;
    padding-left: 30px;
  }
}
＆＃13; 
<!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">
  <link rel="stylesheet" href="style.css">
  <title>Document</title>
</head>

<body>
  <!-- Container section will contain the entire landing page -->
  <header class= "v-header container">
  <!-- Video-Wrap section will contain the video -->
    <div class= "video-wrap">
      <video src="images/media2.mp4" autoplay="true" loop="true"></video>
    </div>
  <!-- Overlay section will be over the video, styled with CSS -->
      <div class= "overlay">  </div>
  <!-- Content will contain the actual content on the landing page with links to other pages -->
    <div class="content">
      <h1>Coffee R Us</h1>
      <p>If you like coffee, you'll love us!</p>
      <a href="#" class= "btn">About us</a>
      <a href="#" class= "btn">Our Menu</a>
    </div>

  </header>

<!-- Sections will appear BELOW the wrapper video -->
  <section class="section-a">
    <div>
      <h1>Section A - Thing 1</h1>
      <p> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint laborum veniam quae non nesciunt enim deleniti soluta molestias molestiae dolorem.</p>
    </div>
  </section>

  <section class="section-b">
    <div>
      <h1>Section B - Thing 1</h1>
      <p> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint laborum veniam quae non nesciunt enim deleniti soluta molestias molestiae dolorem.</p>
    </div>
  </section>

</body>

</html>
＆＃13;
＆＃13;
＆＃13;

答案 2 :(得分：0)

你的问题是，即使你的文本在div的中心，你的div本身并没有使用所有可用的宽度，所以你最终在错放的容器中有一个居中的文本。

从那里，您有2个解决方案来修复您的.content CSS：

  • 以margin: auto;
    • 为中心
  • 展开它以便它将使用所有宽度，您将能够正确对齐元素：width: 100%;

答案 3 :(得分：0)

.content {width：100％}在.content class

上添加100％的宽度

答案 4 :(得分：0)

问题是您将.content元素（ .v-header ）的容器设为display:flex。这使得.content元素仅占用其内容所需的空间（它不再扩展到容器的100％）。

现在您需要添加justify-content:center以将整个框与中心对齐。

*{
  box-sizing: border-box;
  text-align: center;
}

body {
margin: 0;
font-family: sans-serif;
font-size: 20px;
line-height: 1.5;
color: #333;
overflow-x: hidden;
}

.v-header{
  height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
  justify-content:center;
}

.container {
  max-width: 960px;
  padding-left: 1rem;
  padding-right: 1rem;
  margin: auto;
  text-align: center;
}

.video-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.video-wrap video {
  min-width: 100%;
  min-height: 100%;
}

.overlay {
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background: #225470;
  z-index: 1;
  opacity: 0.55;
}

.content {
  z-index: 2;
}

.content h1 {
  font-size: 50px;
  margin-bottom: 0px;
}

.content p {
  font-size: 25px;
  display: block;
  padding-bottom: 20px;
}

.btn {
  background: #34b3a0;
  color: #fff;
  font-size: 15px;
  padding: 15px 20px;
  text-decoration: none;
}

.section {
  padding: 20px 0px;
}

.section-b {
  background: #34b3a0;
  color: #fff;
}

@media(max-width: 960px) {
  .container {
    padding-right: 30px;
    padding-left: 30px;
  }
}
<!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">
  <link rel="stylesheet" href="style.css">
  <title>Document</title>
</head>

<body>
  <!-- Container section will contain the entire landing page -->
  <header class= "v-header container">
  <!-- Video-Wrap section will contain the video -->
    <div class= "video-wrap">
      <video src="images/media2.mp4" autoplay="true" loop="true"></video>
    </div>
  <!-- Overlay section will be over the video, styled with CSS -->
      <div class= "overlay">  </div>
  <!-- Content will contain the actual content on the landing page with links to other pages -->
    <div class="content">
      <h1>Coffee R Us</h1>
      <p>If you like coffee, you'll love us!</p>
      <a href="#" class= "btn">About us</a>
      <a href="#" class= "btn">Our Menu</a>
    </div>

  </header>

<!-- Sections will appear BELOW the wrapper video -->
  <section class="section-a">
    <div>
      <h1>Section A - Thing 1</h1>
      <p> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint laborum veniam quae non nesciunt enim deleniti soluta molestias molestiae dolorem.</p>
    </div>
  </section>

  <section class="section-b">
    <div>
      <h1>Section B - Thing 1</h1>
      <p> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint laborum veniam quae non nesciunt enim deleniti soluta molestias molestiae dolorem.</p>
    </div>
  </section>

</body>

</html>

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