此特效来自wordpress一个模板，然后在模板BM2.2免费版中有移植。

不喜欢说废话，直接上代码。
1.首先在</body>之前加上如下代码：
<div id="circle"></div>
<div id="circletext"></div>
<div id="circle1"></div>
2.再加上一段JS。
<script type="text/javascript">
$(function () {
$("#circletext").text("加载肿");
$(window).load(function() {
$("#circle").fadeOut(400);
$("#circle1").fadeOut(600);
$("#circletext").text("完成鸟").fadeOut(800);
});
});
//-->
</script>
3.加上css。
/* 圆圈加载*/
#circle{background-color:rgba(0,0,0,0);border:5px solid rgba(10,10,10,0.9);opacity:.9;border-right:5px solid rgba
 
(0,0,0,0);border-left:5px solid rgba(0,0,0,0);border-radius:50px;box-shadow:0 0 35px #808080;width:60px;height:60px;margin:0 
 
auto;position:fixed;left:30px;bottom:30px;-moz-animation:spinPulse 1s infinite linear;-webkit-animation:spinPulse 1s infinite 
 
linear;-o-animation:spinPulse 1s infinite linear;-ms-animation:spinPulse 1s infinite linear;}
#circle1{background-color:rgba(0,0,0,0);border:6px solid rgba(20,20,20,0.9);opacity:.9;border-left:6px solid rgba
 
(0,0,0,0);border-right:6px solid rgba(0,0,0,0);border-radius:50px;box-shadow:0 0 15px #202020;width:40px;height:40px;margin:0 
 
auto;position:fixed;left:39px;bottom:39px;-moz-animation:spinoffPulse 1s infinite linear;-webkit-animation:spinoffPulse 1s 
 
infinite linear;-o-animation:spinoffPulse 1s infinite linear;-ms-animation:spinoffPulse 1s infinite linear;}
#circletext{width:46px;height:20px;margin:0 auto;position:fixed;left:46px;bottom:53px;}
@-moz-keyframes spinPulse{0%{-moz-transform:rotate(160deg);opacity:0;box-shadow:0 0 1px #505050;}50%{-moz-transform:rotate
 
(145deg);opacity:1;}100%{-moz-transform:rotate(-320deg);opacity:0;}}
@-moz-keyframes spinoffPulse{0%{-moz-transform:rotate(0deg);}100%{-moz-transform:rotate(360deg);}}
@-webkit-keyframes spinPulse{0%{-webkit-transform:rotate(160deg);opacity:0;box-shadow:0 0 1px #505050;}50%{-webkit-
 
transform:rotate(145deg);opacity:1;}100%{-webkit-transform:rotate(-320deg);opacity:0;}}
@-webkit-keyframes spinoffPulse{0%{-webkit-transform:rotate(0deg);}100%{-webkit-transform:rotate(360deg);}}
@-o-keyframes spinPulse{0%{-o-transform:rotate(160deg);opacity:0;box-shadow:0 0 1px #505050;}50%{-o-transform:rotate
 
(145deg);opacity:1;}100%{-o-transform:rotate(-320deg);opacity:0;}}
@-o-keyframes spinoffPulse{0%{-o-transform:rotate(0deg);}100%{-o-transform:rotate(360deg);}}
@-ms-keyframes spinPulse{0%{-ms-transform:rotate(160deg);opacity:0;box-shadow:0 0 1px #505050;}50%{-ms-transform:rotate
 
(145deg);opacity:1;}100%{-ms-transform:rotate(-320deg);opacity:0;}}
@-ms-keyframes spinoffPulse{0%{-ms-transform:rotate(0deg);}100%{-ms-transform:rotate(360deg);}}
OK，完工。