响应式页面
响应式页面是根据宽度高度等变换页面样式。移动端和响应式页面是区别的。
优点：
一套页面适应多端设备，提升开发效率。
缺点：
页面效果不及单独为某一终端定制的页面效果;性能问题;维护成本提升
总结：
大部分项目不会整体才有响应式页面的解决方案。
媒体查询
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| @media screen and (max-width: 600px) {
.box {
width: 200px;
height: 200px;
background-color: red;
}
}
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@media screen and (min-width: 600px) and (max-width: 900px) {
.box {
width: 200px;
height: 200px;
background-color: red;
}
}
|
示例代码
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| <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
* {
margin: 0px;
padding: 0px;
}
.box {
width: 100px;
height: 100px;
background-color: yellow;
}
@media screen and (max-width: 600px) {
.box {
width: 200px;
height: 200px;
background-color: red;
}
}
</style>
</head>
<body>
<div class="box"></div>
</body>
</html>
|
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| <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
* {
margin: 0px;
padding: 0px;
}
.box {
width: 100px;
height: 100px;
background-color: yellow;
}
@media screen and (min-width: 600px) and (max-width: 900px) {
.box {
width: 200px;
height: 200px;
background-color: red;
}
}
</style>
</head>
<body>
<div class="box"></div>
</body>
</html>
|
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| <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
* {
margin: 0px;
padding: 0px;
}
.container {
display: flex;
width: 800px;
margin: 0 auto;
background-color: grey;
justify-content: center;
}
.item {
width: 200px;
border: 1px solid red;
text-align: center;
}
@media screen and (max-width: 700px) {
.container {
width: 100%;
flex-direction: column;
}
.item {
width: 100%;
}
}
</style>
</head>
<body>
<div class="container">
<div class="item">
<h1>文档</h1>
</div>
<div class="item">
<h1>博客</h1>
</div>
<div class="item">
<h1>视频</h1>
</div>
</div>
</body>
</html>
|
作业
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| <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
* {
margin: 0px;
padding: 0px;
}
.container {
display: flex;
width: 800px;
background-color: grey;
margin: 0 auto;
justify-content: center;
}
.item {
width: 200px;
text-align: center;
border: 1px solid red;
}
@media screen and (max-width: 700px) {
.container {
flex-direction: column;
width: 100%;
}
.item {
width: 100%;
}
}
</style>
</head>
<body>
<div class="container">
<div class="item">
<h1>文档</h1>
</div>
<div class="item">
<h1>博客</h1>
</div>
<div class="item">
<h1>视频</h1>
</div>
</div>
</body>
</html>
|