關於適配所有移動端螢幕且到固定寬度時居中的寫法
阿新 • • 發佈：2018-12-23
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1">
<title>圖解風雲</title>
<style>
*{
margin: 0;
padding: 0;
}
html,body{
position: relative;
background: #EEE;
}
div{
position: relative;
}
img{
border: none;
width: 100%;
max-width: 750px;
}
.img1{
position: absolute;
left: 50%;
margin-left: -375px;
}
</style>
</head>
<body>
<div id='box'>
<img src='img/tjdj.png' id='img'>
</div>
<script>
function getInsideArr(){
var w=window.innerWidth || document.documentElement.clientWidth ;
document.getElementById("box").style.width=w+"px";
if(w>750){
document.getElementById("box").style.width=750+"px";
var div = document.getElementById('box');
div.setAttribute("class", "img1");
};
};
getInsideArr();
</script>
</body>
</html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1">
<title>圖解風雲</title>
<style>
*{
margin: 0;
padding: 0;
}
html,body{
position: relative;
background: #EEE;
}
div{
position: relative;
}
img{
border: none;
width: 100%;
max-width: 750px;
}
.img1{
position: absolute;
left: 50%;
margin-left: -375px;
}
</style>
</head>
<body>
<div id='box'>
<img src='img/tjdj.png' id='img'>
</div>
<script>
function getInsideArr(){
var w=window.innerWidth || document.documentElement.clientWidth ;
document.getElementById("box").style.width=w+"px";
if(w>750){
document.getElementById("box").style.width=750+"px";
var div = document.getElementById('box');
div.setAttribute("class", "img1");
};
};
getInsideArr();
</script>
</body>
</html>