效果图
各位长友大家早上好！
今天给各位带来的是 HTML5+JS全屏星空特效源码！
有想要文件版源码的能私聊小编哦！
废话不多说，上源码！
CSS：
body {margin:0 auto;overflow:hidden;}
.header{
margin:0 auto;
width:100%;
height:640px;
background-color:#000;
position:relative;
}
.header canvas {
width:100%;height:auto;
display:inline-block;vertical-align:baseline
position:absolute;
z-index:-1;
}
.header .canvaszz{
width:100%;
background-image: url(img/in_top_bj.jpg);
height:640px;
position:absolute;
z-index:10;
filter:alpha(opacity=40);
-moz-opacity:0.4;
-khtml-opacity: 0.4;
opacity: 0.4;
}
.audio{
width:45px;
position:fixed;top:65px;left:94%;
z-index:100;
filter:alpha(opacity=30);
-moz-opacity:0.3;
-khtml-opacity: 0.3;
opacity: 0.3;
}
.header .top_logo{
background-image: url(img/top_logo.png);
margin:0 auto;
width:750px;
height:200px;
position:absolute;
z-index:30;
top:10px;
left: 50%;
margin-left: -390px;
}
.header .nav{
width:804px;
height:auto;
position:absolute;
z-index:30;
top:420px;
left: 50%;
margin-left: -400px;
}
.header .nav a.gv {
text-decoration:none;
background:url(img/nav_gv.png) repeat 0px 0px;
width: 130px;
height: 43px;
display: block;
text-align:center;
line-height:43px;
cursor:pointer;
float:left;
margin:8px 2px 8px 2px;
font:18px/43px 'microsoft yahei'; color:#066197;
}
.header .nav a.gv span {
display: none;
}
.header .nav a.gv:hover {
background: url(img/nav_gv.png) repeat 0px -43px;
color:#1d7eb8;
-webkit-box-shadow: 0 0 6px #1d7eb8;
transition-duration: 0.5s;
}
.header.topcn{
width: 980px;
top:200px;
left: 50%;
margin-left: -490px;
position:absolute;
z-index:20;
}