在body下面设置background设置背景时,发现背景不能全部覆盖屏幕,用background-size:cover及ie的滤镜效果都没法解决屏幕。
可以直接复制测试用例测试 , 或者在当前链接下用ie测试 http://sandbox.runjs.cn/show/icueqkcc
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Document</title>
<style type="text/css">
#container {
z-index: -1;
width: 100%;
height: 100%;
position: absolute;
top: 0;
background: url(https://ss0.bdstatic.com/70cFuHSh_Q1YnxGkpoWK1HF6hhy/it/u=1943249770,628140654&fm=200&gp=0.jpg) no-repeat;
}
</style>
</head>
<body>
<img id="container" src="https://ss0.bdstatic.com/70cFuHSh_Q1YnxGkpoWK1HF6hhy/it/u=1943249770,628140654&fm=200&gp=0.jpg" />
<div id="login">
<div id="errorInfo"></div>
<form action="" id="form">
<label for="userName" style="margin-right: 10px;">用户名:</label><input type="text" name="" id="userName" style="width: 140px;height: 25px;" /> <br />
<label for="secreate" style="margin-right: 10px;">密码:</label><input type="password" name="" id="secreate" style="width: 140px;height: 25px;" /><br />
<button id="btn">登录</button>
<a href="" id="forget" style="margin-left: 10px;">忘记密码?</a>
</form>
</div>
</body>
</html>
通过设置 添加一个
<img id="container" src="https://ss0.bdstatic.com/70cFuHSh_Q1YnxGkpoWK1HF6hhy/it/u=1943249770,628140654&fm=200&gp=0.jpgimg/test.jpg" />
#container{
z-index: -1; width: 100%; height: 100%; position: absolute; top: 0; background: url(../img/test.jpg) no-repeat;
}
让图片覆盖整个屏幕;