全屏显示的方法1:使用CSS
.bg {background-image:url(scale.jpg)
-moz-background-size: 100% 100%/* Firefox 3.6 */
-o-background-size: 100% 100%/* Opera 9.5 */
-webkit-background-size: 100% 100%/* Safari 3.0 */
background-size: 100% 100%/* Firefox 4.0 and other CSS3-compliant browsers */
-moz-border-image: url(scale.jpg) 0/* Firefox 3.5 */
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='scale.jpg', sizingMethod='scale')/* for <ie9 */}2:使用 IMG 标签
<img class=stock style=position: absolutetop: 0pxleft: 0pxheight: 100%width: 100%src=default.jpg补充方法3:使用 CSS3 的背景 Cover
.bg {background: #000 url(scale.jpg) no-repeat center center
-webkit-background-size: cover
-moz-background-size: cover
<div class="page show-modal"><div class="container">主要内容</div>
<div class="modal">浮层</div>
</div>
假设有这样的HTML结构,那么让 .modal 绝对定位在 .container 上面,.container 设置 blur 即可。
.modal {display: none
position: fixed
left: 0
top: 0
right: 0
bottom: 0
background: rgba(255,255,255,.8)
}
.show-modal .modal {
display: block
}
.show-modal .container {
-webkit-filter: blur(4px)
}
演示:http://jsbin.com/nesewayosa/1/