【问题标题】:Make jumbotron background-image and text responsive [closed]使 jumbotron 背景图像和文本响应[关闭]
【发布时间】:2015-11-26 21:57:50
【问题描述】:

我有一个jumbotron,可以将其横幅图像调整到整个屏幕。

当我尝试在图片上放置文字时,文字不会显示在手机屏幕上,因为图片适合手机屏幕(高度越来越小)。

如何调整图片和文字以适应任何屏幕?

.widewrapper {
  width: 100%;
}
.widewrapper > img {
  width: 100%;
}
.post-content {
  background: none repeat scroll 0 0;
  opacity: 0.5;
  top: 0;
  left: 0;
  position: absolute;
}
.thumbnail {
  position: relative;
}
<!-- Bootstrap CDN -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />

<!-- Original code -->
<div class="widewrapper thumbnail">
  <img class="" src="http://orig10.deviantart.net/f6bf/f/2007/054/1/9/website_banner_landscape_by_kandiart.jpg" alt="">
  <div class="post-content">
    <h2 class="text-white">ABOUT</h2>
    <h3 class="text-white">We invite you to enjoy a luxurious ground transportation service provided by our team of experts. We have the experience and skills to meet the expectations of every passenger and add value to every ride.</h3>
  </div>
</div>

【问题讨论】:

    标签: html css image twitter-bootstrap


    【解决方案1】:

    您可以手动添加media queries,根据视口大小调整字体大小。它运行良好,但很耗时。

    以下示例(您需要根据需要调整值):

    @media(max-width: 1580px) {
    post-content {
    font-size: 18px;
    }
    
    @media(max-width: 980px) {
    post-content {
    font-size: 16px;
    }
    
    @media(max-width: 700px) {
    post-content {
    font-size: 14px;
    }
    

    有些工具也可以为你自动完成这项工作,我使用this one,但还有很多其他工具。

    【讨论】:

      【解决方案2】:

      从您的 HTML 中删除图像并将其设置为 CSS 中的背景。

      你可以使用:

      background-image: url('');
      background-size: cover;
      

      body, h2, h3 {
        margin: 0px;
        font-family: Helvetica, Arial;
      }
      
      #background-wrapper {
        background-image: url('http://orig10.deviantart.net/f6bf/f/2007/054/1/9/website_banner_landscape_by_kandiart.jpg');
        background-size: cover;
        color: white;
        text-align: center;
      }
      <div id="background-wrapper">
        <h2>About:</h2>
        <h3>We invite you to enjoy a luxurious ground transportation service provided by our team of experts. We have the experience and skills to meet the expectations of every passenger and add value to every ride.</h3>
      </div>

      【讨论】:

        【解决方案3】:

        这样做的一种方法是使用viewport-relative units 作为您的字体大小。

        1 vw单位等于1%的初始宽度 包含块。

        例如:

        .widewrapper { width: 100%; }
        .widewrapper > img { width: 100%; }
        .post-content {
          position: absolute; top: 0; left: 0;
          background: none repeat scroll 0 0;
          opacity: 0.7;
        }
        .thumbnail { position: relative; }
        h2, h3 { color: #fff !important; margin: 8px; }
        h3 { font-size: 2.3vw !important; color: #fff !important; }
        <!-- Bootstrap CDN -->
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
        
        <div class="widewrapper thumbnail">
          <img class="" src="http://orig10.deviantart.net/f6bf/f/2007/054/1/9/website_banner_landscape_by_kandiart.jpg" alt="">
          <div class="post-content">
            <h2 class="text-white">ABOUT</h2>
            <h3 class="text-white">We invite you to enjoy a luxurious ground transportation service provided by our team of experts. We have the experience and skills to meet the expectations of every passenger and add value to every ride.</h3>
          </div>
        </div>

        【讨论】:

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