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響應式容器布局

med 響應式 樣式 back contain 適應 doctype width html

HTML:

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width initial-scale=1" >
視口 寬度自適應 縮放比例
<title>Title</title>
<link rel="stylesheet" href="bootstrap.css">
<style>
div{
border: 1px solid black;
height: 450px;
}
</style>
</head>
<body>
<!--主體部分-->
<div class="container"></div>
</body>
</html>


CSS

/*針對PC屏幕央視*/
@media screen and (min-width: 992px){
.container{
width: 970px;
margin: 0 auto;
}

}
/*針對PAD屏幕的樣式*/
@media screen and(min-width:768px ) and (max-width: 991px){
.container{
width: 750px;
margin: 0 auto;
}
}
/*針對手機的樣式*/
@media screen and (max-width: 767px){
.container{
width: 100%;
margin: 0 auto;
}

}

響應式容器布局