Question

我有我正在处理的网页。关于它的一切都在响应性方面正常运行，但是，只有页脚不能正常工作。当屏幕变小时，我希望页脚的3个部分显示在彼此之下。非常感谢任何帮助。看看下面的代码：

HTML：

<!DOCTYPE html>
<html >
<head>
    <meta charset="UTF-8">
    <title>Papia</title>  
    <link rel="stylesheet" href="css/style.css">  
</head>
<body>
    <!--- This is the path to the image that will display on mobile --->
    <video poster="assets/backupimage.jpg" id="bgvid" playsinline autoplay muted loop>
        <!--- Inlcude the video files with .webm file first --->
        <source src="assets/papia.webm">
        <source src="assets/papia.mp4">
        <source src="assets/papia.mov">
    </video>
    <div id="topLeft">
        <img src="assets/papia-logo-secondary.svg">
    </div>
    <div id="topRight">
        <a href="http://www.google.com" target="_blank">Find a table</a>
    </div>
    <div id="logo">
        <img src="assets/papia-logo-main.svg">
    </div>
    <div id="left">
        <p>4:30pm - close (kitchen closes at 11pm)</p>
    </div>
    <div id="centre">
        <a href="" target="_blank">Facebook</a>
        <a href="" target="_blank">Instagram</a>
        <a href="" target="_blank">Twitter</a>
    </div>
    <div id="right">
        <p>64 Welfare Road, Cole Bay, Sint Maarten</p>
    </div>
    <!---
    This is an option button that will pause the video background
    <div>
        <button>Pause</button>
    </div>
    --->
    <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
    <script src="js/index.js"></script>
</body>
</html>

CSS：

    #left{
    position: absolute;
    float: left;
    bottom: 0;
    left: 20px;
    color: white;
}
#centre{
    position: absolute;
    float: left;
    margin-left: 40%;
    bottom: 10px;
    clear: inherit;
    min-width: 300px;
}
#right{
    position: absolute;
    float: left;
    margin-left: 78%;
    bottom: 0;
    color: white;
}

@media screen and (max-width: 500px) { 
  div{display: block}
}
@media screen and (max-device-width: 800px) {
  html { background: url(assets/backupimage.jpg) #000 no-repeat center center fixed; }
  #bgvid { display: none; }
  div{display: block}
}

Answer 1

绝对定位是页面布局的不良选择。使用浮动或弹性框。

浮

main,
footer > div {
  text-align: center;
  font-family: Roboto, sans-serif;
}
main {
  min-height: 300px;
  color: #f1f1f1;
  background-color: #333;
  font-size: 2.5rem;
}
main strong {
  text-decoration: underline;
}
footer > div:nth-child( 2 ) {
  background-color: #eee;
}
@media ( min-width: 450px ) {
  footer > div {
    float: left;
    width: 33.333%;
  }
}

<main>
    <strong>Floated</strong> footer sections.
</main>
<footer>
  <div>One</div>
  <div>Two</div>
  <div>Three</div>
</footer>

Flexbox的

main,
footer > div {
  text-align: center;
  font-family: Roboto, sans-serif;
}
main {
  min-height: 300px;
  color: #f1f1f1;
  background-color: #333;
  font-size: 2.5rem;
}
main strong {
  text-decoration: underline;
}
footer {
  display: flex;
  flex-direction: column;
}
footer > div {
  flex: 1;
}
footer > div:nth-child( 2 ) {
  background-color: #eee;
}
@media ( min-width: 450px ) {
  footer {
    flex-direction: row;
  }
}

<main>
    <strong>Flex</strong> footer sections.
</main>
<footer>
  <div>One</div>
  <div>Two</div>
  <div>Three</div>
</footer>

Answer 2

我同意hungerstar的评论 - 绝对定位将使您的网页响应变得不必要。话虽如此，它可以做到。您已经在CSS中使用了@media屏幕和（max-width：500px）语法，但没有在其功能的全部范围内使用它。在标记为max-width：500px部分的部分内部，您有机会完全重新定义css以获得小于500px的浏览器窗口。在这些括号内，您可以重新定义3个div的CSS。

@media screen and (max-width: 500px){
 #left{
  position: absolute;
  float: left;
  bottom: 200px;
  left: 20px;
  color: white;
}
#centre{
  position: absolute;
   left: 20px;
  float: left;
  bottom: 100px;
  clear: inherit;
  min-width: 300px;
 }
#right{
  position: absolute;
  float: left;
  left: 20px;
  bottom: 0;
  color: white;
}
}

所以这将检查你的屏幕宽度，当它变得小于500px时，这个CSS将被应用，你的3个div将被重新定位到左边，堆叠在一起（我组成）任意位置（从底部100和200像素）。你需要为800px大小的屏幕重新定义所有这些

Answer 3

您使用position:absolute

完全搞乱了布局

你需要做这样的事情：

  #left {
     float: left;
     color: white;
   }

   #centre {
     float: left;
     clear: inherit;
     min-width: 300px;
   }

   #right {
     float: left;
     color: white;
   }

这是fiddle

为什么我的页脚不会重新调整到更小的屏幕尺寸？

3 个答案:

浮

Flexbox的