效果图:
图(1)初始图
图(2)点击按钮后
代码如下:
代码如下
#mask {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 999;
background: #666;
opacity: 0.5;
filter: alpha(opacity=50)-moz-opacity: 0.5;
display: none;
}
.popup {
position: absolute;
left: 50%;
width: 600px;
height: 200px;
background: #fff;
z-index: 1000;
border: 1px solid #333;
display: none;
}
.btn_close {
position: absolute;
top: 5px;
right: 5px;
}
<scriptsrc="http://cdn.bootcss.com/jquery/3.1.1/jquery.js"></script>
<script>
$(function() {
$('.btn_show').click(function() {
$('#mask').css({
display: 'block',
height: $(document).height()
})
var $Popup = $('.popup');
$Popup.css({
left: ($('body').width() - $Popup.width()) / 2+ 'px',
top: ($(window).height() - $Popup.height()) / 2 + $(window).scrollTop() + 'px',
display: 'block'
})
})
$('.btn_close').click(function() {
$('#mask,.popup').css('display', 'none');
})
})
</script>
http://m.bbyears.com/wangyezhizuo/126945.html
推荐访问:jquery面试题 jquery教程