纯CSS3精美登录界面

1.效果预览

2.CSS代码
@import url(http://fonts.useso.com/css?family=Source+Sans+Pro:200,300);
*{
padding: 0;
margin: 0;
font-weight: 300;
}

body ::-webkit-input-placeholder {
/* WebKit browsers */
font-family: ‘Source Sans Pro’, sans-serif;
color: white;
font-weight: 300;
}
body :-moz-placeholder {
/* Mozilla Firefox 4 to 18 */
font-family: ‘Source Sans Pro’, sans-serif;
color: white;
opacity: 1;
font-weight: 300;
}
body ::-moz-placeholder {
/* Mozilla Firefox 19+ */
font-family: ‘Source Sans Pro’, sans-serif;
color: white;
opacity: 1;
font-weight: 300;
}
body :-ms-input-placeholder {
/* Internet Explorer 10+ */
font-family: ‘Source Sa