简单的Jquery遮罩层代码实例

  Css代码

  

复制代码 代码如下:

  #brg

  {

  width: 100%;

  height: 100%;

  background: #333;

  position: absolute;

  top: 0;

  left: 0;

  filter: alpha(opacity=60);

  -moz-opacity: 0.6;

  opacity: 0.6;

  position: absolute;

  top: 0;

  left: 0;

  display: none;

  }

  #showdiv

  {

  width: 100%;

  height: auto;

  position: absolute;

  left: 300px;

  top: 150px;

  z-index: 330;

  display: none;

  }

  #testdiv

  {

  width: 800px;

  height: auto;

  margin: 0 0;

  border: 1px solid #4d4d4d;

  background: #f2f2f2;

  }

  #close

  {

  width: 200px;

  height: 27px;

  line-height: 27px;

  font-size: 14px;

  font-weight: bold;

  border: 1px solid #4d4d4d;

  text-align: center;

  cursor: pointer;

  margin: 0 auto;

  background: #333;

  color: #fff;

  }

  Html 代码

  

复制代码 代码如下:

  <div id="brg">

  </div>

  <div id="showdiv">

  <div id="close">

  关闭

  </div>

  <div id="testdiv">

  要显示的内容

  </div>

  </div>

  Jquery 代码

  

复制代码 代码如下:

  $(document).ready(function() {

  var bheight = document.body.clientHeight;

  $("#btnAdd").click(function() {

  $("#brg").css("display", "block");

  $("#showdiv").css("display", "block");

  $("#brg").css("height", document.body.scrollHeight);

  $("#showdiv").css("top", document.body.scrollTop + 100);

  });

  $("#close").click(function() {

  $("#brg").css("display", "none");

  $("#showdiv").css("display", "none");

  });

  });