HTML5/CSS3 3D立体功能按钮在线演示
.screen-reader-text {
position: absolute;
top: -9999px;
left: -9999px;
}
@font-face {
font-family: 'fontello';
src: url('http://css-/examples/RoundButtons/fonts/fontello.eot');
src: url('http://css-/examples/RoundButtons/fonts/fontello.eot?#iefix') format('embedded-opentype'),
url('http://css-/examples/RoundButtons/fonts/fontello.woff') format('woff'),
url('http://css-/examples/RoundButtons/fonts/fontello.ttf') format('truetype'),
url('http://css-/examples/RoundButtons/fonts/fontello.svg#fontello') format('svg');
font-weight: normal; font-style: normal;
}
[class*="icon-"] {
font-family: 'fontello';
font-style: normal;
font-size: 3em;
speak: none;
}
.icon-home:after { content: "\2302"; }
.icon-cog:after { content: "\2699"; }
.icon-cw:after { content: "\27f3"; }
.icon-location:after { content: "\e724"; }
* {
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
margin: 0;
padding: 0;
}
html {
background: #f7f7f7 url(http://css-/examples/RoundButtons/images/bg.png) repeat center top;
}
.nav {
list-style: none;
text-align: center;
}
.nav li {
position: relative;
display: inline-block;
margin-right: -4px;
}
.nav li:before {
content: "";
display: block;
border-top: 1px solid #ddd;
border-bottom: 1px solid #fff;
width: 100%;
height: 1px;
position: absolute;
top: 50%;
z-index: -1;
}
.nav a:link, .nav a:visited {
display: block;
text-decoration: none;
background-color: #f7f7f7;
background-image: -webkit-gradient(linear, left top, left bottom, from(#f7f7f7), to(#e7e7e7));
background-image: -webkit-linear-gradient(top, #f7f7f7, #e7e7e7);
background-image: -moz-linear-gradient(top, #f7f7f7, #e7e7e7);
background-image: -ms-linear-gradient(top, #f7f7f7, #e7e7e7);
background-image: -o-linear-gradient(top, #f7f7f7, #e7e7e7);
color: #a7a7a7;
margin: 36px;
width: 144px;
height: 144px;
position: relative;
text-align: center;
line-height: 144px;
border-radius: 50%;
box-shadow: 0px 3px 8px #aaa, inset 0px 2px 3px #fff;
border: solid 1px transparent;
}
.nav a:before {
content: "";
display: block;
background: #fff;
border-top: 2px solid #ddd;
position: absolute;
top: -18px;
left: -18px;
bottom: -18px;
right: -18px;
z-index: -1;
border-radius: 50%;
box-shadow: inset 0px 8px 48px #ddd;
}
.nav a:active {
box-shadow: none;
border: solid 1px #a7a7a7;
}
.nav a:hover {
text-decoration: none;
color: #555;
background: #f5f5f5;
}
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