[CSS3技术]CSS3制作分步注册表单

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body{
 background:#1e1f20;
 font-size:18px;
}
.login{
 width: 330px;
 margin: 40px auto 0;
 text-align: center;
}
.login h2{
 font:italic 32px/40px "Impact";
 letter-spacing:1px;
 color:rgba(0,0,0,0);
 background: -webkit-linear-gradient(top,#ffcf6b,#ffc54c 10%,#ffb320 40%,#c16e05);
 background: -moz-linear-gradient(top,#ffcf6b,#ffc54c 10%,#ffb320 40%,#c16e05);
 background: -o-linear-gradient(top,#ffcf6b,#ffc54c 10%,#ffb320 40%,#c16e05);
 background: -ms-linear-gradient(top,#ffcf6b,#ffc54c 10%,#ffb320 40%,#c16e05);
 background: linear-gradient(top,#ffcf6b,#ffc54c 10%,#ffb320 40%,#c16e05);
 -webkit-background-clip:text;
 /*-webkit-text-stroke: 2px #000;*/
}
.login p{
 color:#070606;
 font-size:28px;
 font-style:italic;
 font-weight:bold;
 text-shadow:1px 1px 0 rgba(255,255,255,.2),-1px -1px 0 rgba(255,255,255,.2);
}
.control-round{
 position:relative;
 list-style:none;
 height:5px;
 border:1px solid #222222;
 background:#101010;
 margin:50px 0 40px;
}
.control-round label{
 position:absolute;
 top:-18px;
 font-family:"Impact";
 width:36px;
 color:#151515;
 line-height:36px;
 text-shadow:-1px -1px 1px #666,1px 1px 1px #666;
 border-radius:18px;
 border:1px solid #686868;
 box-shadow:0 0 2px 2px rgba(0,0,0,.2);
 background:-webkit-linear-gradient(top,#656565,#393939);
 background:-moz-linear-gradient(top,#656565,#393939);
 background:-o-linear-gradient(top,#656565,#393939);
 background:-ms-linear-gradient(top,#656565,#393939);
 background:linear-gradient(top,#656565,#393939);
}
.control-round label.active{
 text-shadow:0 1px 0 #f5b738;
 border:1px solid #c4883b;
 background:-webkit-linear-gradient(top,#f6ae1b,#b46001);
 background:-moz-linear-gradient(top,#f6ae1b,#b46001);
 background:-o-linear-gradient(top,#f6ae1b,#b46001);
 background:-ms-linear-gradient(top,#f6ae1b,#b46001);
 background:linear-gradient(top,#f6ae1b,#b46001);
}
.control-round label.active:after,
.control-round label.active:before{
 position:absolute;
 display:block;
 content:"";
 border-style:solid;
 left:50%;
 top:40px;
}
.control-round label.active:after{
 margin:5px 0 0 -6px;
 border-width:6px;
 border-color:#dc8e0f transparent transparent transparent;
 z-index:3;
}
.control-round label.active:before{
 margin:4px 0 0 -7px;
 border-width:7px;
 border-color:#000 transparent transparent transparent;
 z-index:2;
}
.control-round label:nth-child(1){
 left:0;
}
.control-round label:nth-child(2){
 left:50%;
 margin-left:-18px;
}
.control-round label:nth-child(3){
 right:0;
}
.control-group{
 position:relative;
 margin:20px 0;
}
.control-group:after{
 position:absolute;
 display:block;
 top:10px;
 left:12px;
 width:25px;
 color:rgba(255,255,255,.6);
 text-align:center;
 font-size:16px;
 content: "21";
 font-family: 'icomoon';
 font-style: normal;
 speak: none;
 font-weight: normal;
 -webkit-font-smoothing: antialiased;
}
.control-group:nth-child(2):after{
 content: "22";
}
.control-group input{
 padding-left:40px;
 width:100%;
 height:44px;
 border-radius:22px;
 border:1px solid #2b2b2b;
 box-shadow:inset 0 0 10px rgba(0,0,0,1);
 background:#151515;
 color:#fefefe;
 -webkit-transition: border linear 0.2s, box-shadow linear 0.2s;
 -moz-transition: border linear 0.2s, box-shadow linear 0.2s;
 -o-transition: border linear 0.2s, box-shadow linear 0.2s;
 -ms-transition: border linear 0.2s, box-shadow linear 0.2s;
 transition: border linear 0.2s, box-shadow linear 0.2s;
 -webkit-box-sizing: border-box;
 -moz-box-sizing: border-box;
 -o-box-sizing: border-box;
 -ms-box-sizing: border-box;
 box-sizing: border-box;
}
.control-group input:focus{
 box-shadow: inset 0 1px 3px rgba(255,255,255,0.1), 0 0 8px rgba(255,255,255, 0.6);
}
.form-actions{
 text-align:right;
}
.form-actions .btn{
 position:relative;
 padding:0 20px;
 margin-left:5px;
 height:35px;
 line-height:35px;
 color:#000;
 text-shadow:0 1px 0 #7f7f7f;
 border-radius:17px;
 border:1px solid #4f4f4f;
 box-shadow:0 0 3px #000;
 background:-webkit-linear-gradient(top,#666666,#414141);
 background:-moz-linear-gradient(top,#666666,#414141);
 background:-o-linear-gradient(top,#666666,#414141);
 background:-ms-linear-gradient(top,#666666,#414141);
 background:linear-gradient(top,#666666,#414141);
}
.form-actions .btn:hover{
 background:-webkit-linear-gradient(top,#757575,#4e4e4e);
 background:-moz-linear-gradient(top,#757575,#4e4e4e);
 background:-o-linear-gradient(top,#757575,#4e4e4e);
 background:-ms-linear-gradient(top,#757575,#4e4e4e);
 background:linear-gradient(top,#757575,#4e4e4e);
}
.form-actions .btn:active{
 top:1px;
 border:1px solid #111;
 box-shadow:0 1px 1px #111 inset;
 background:-webkit-linear-gradient(top,#4e4e4e,#4e4e4e);
 background:-moz-linear-gradient(top,#4e4e4e,#4e4e4e);
 background:-o-linear-gradient(top,#4e4e4e,#4e4e4e);
 background:-ms-linear-gradient(top,#4e4e4e,#4e4e4e);
 background:linear-gradient(top,#4e4e4e,#4e4e4e);
}
.form-actions .btn[type=submit]{
 border:1px solid #c36e0e;
 text-shadow:0 1px 0 #f4a922;
 background:-webkit-linear-gradient(top,#f6ab15,#b46001);
 background:-moz-linear-gradient(top,#f6ab15,#b46001);
 background:-o-linear-gradient(top,#f6ab15,#b46001);
 background:-ms-linear-gradient(top,#f6ab15,#b46001);
 background:linear-gradient(top,#f6ab15,#b46001);
}
.form-actions .btn[type=submit]:hover{
 background:-webkit-linear-gradient(top,#ffc145,#c26905);
 background:-moz-linear-gradient(top,#ffc145,#c26905);
 background:-o-linear-gradient(top,#ffc145,#c26905);
 background:-ms-linear-gradient(top,#ffc145,#c26905);
 background:linear-gradient(top,#ffc145,#c26905);
}
.form-actions .btn[type=submit]:active{
 border:1px solid #492700;
 box-shadow:0 1px 2px #492700 inset;
 background:-webkit-linear-gradient(top,#c16e05,#c16e05);
 background:-moz-linear-gradient(top,#c16e05,#c16e05);
 background:-o-linear-gradient(top,#c16e05,#c16e05);
 background:-ms-linear-gradient(top,#c16e05,#c16e05);
 background:linear-gradient(top,#c16e05,#c16e05);
}
@font-face {
 font-family: 'icomoon';
 src:url('fonts/icomoon.eot');
 src:url('fonts/icomoon.eot?#iefix') format('embedded-opentype'),
 url('fonts/icomoon.svg#icomoon') format('svg'),
 url('fonts/icomoon.woff') format('woff'),
 url('fonts/icomoon.ttf') format('truetype');
 font-weight: normal;
 font-style: normal;
}

window.onload=function(){
 var oForm=document.getElementById('form-control');
 var aLabel=oForm.getElementsByTagName('label');
 var aInput=oForm.getElementsByTagName('input')
 for(var i=0;i aInput.index=i;
 aLabel.onclick=function(){
 for(var i=0;i aLabel.className='';
 }
 this.className='active';
 }
 aInput.onclick=function(){
 for(var i=0;i aLabel.className='';
 }
 aLabel[this.index].className='active';
 }
 }
}