设计2D盒子

HTML

<div class="stage s1">
    <div class="container">
        <div class="side top">Top</div>
        <div class="side left">Left</div>
        <div class="side right">Right</div>
    </div>
</div>
    					

CSS

@-webkit-keyframes spin{
    0%{-webkit-transform:rotateY(0deg);transform:rotateY(0deg)}
    100%{-webkit-transform:rotateY(360deg);transform:rotateY(360deg)}
}
@-moz-keyframes spin{
    0%{-moz-transform:rotateY(0deg);transform:rotateY(0deg)}
    100%{-moz-transform:rotateY(360deg);transform:rotateY(360deg)}
}
@-ms-keyframes spin{        

    0%{-ms-transform:rotateY(0deg);transform:rotateY(0deg)}
    100%{-ms-transform:rotateY(360deg);transform:rotateY(360deg)}
}
@-o-keyframes spin{     

    0%{-o-transform:rotateY(0deg);transform:rotateY(0deg)}
    100%{-o-transform:rotateY(360deg);transform:rotateY(360deg)}
}
@keyframes spin{
    0%{transform:rotateY(0deg)}
    100%{transform:rotateY(360deg)}
}
.stage {
    width: 300px;
    height: 300px;
    float: left;
    margin: 15px;
    position: relative;
    -webkit-perspective: 1200px;
    -moz-perspective: 1200px;
    -ms-perspective: 1200px;
    -o-perspective: 1200px;
    perspective: 1200px;
}
.container {
    position: relative;
    height: 230px;
    width: 100px;
    top: 50%;
    left: 50%;
    margin: -100px 0 0 -50px;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    -ms-transform-style: preserve-3d;
    -o-transform-style: preserve-3d;
    transform-style: preserve-3d;
}
.container:hover{
    -moz-animation:spin 5s linear infinite;
    -o-animation:spin 5s linear infinite;
    -webkit-animation:spin 5s linear infinite;
    animation:spin 5s linear infinite;
}
.side {
    font-size: 20px;
    font-weight: bold;
    height: 100px;
    line-height: 100px;
    color: #fff;
    position: absolute;
    text-align: center;
    text-shadow: 0 -1px 0 rgba(0,0,0,0.2);
    text-transform: uppercase;
    width: 100px;
}
.top {
    background: red;
    -webkit-transform: rotate(-45deg) skew(15deg, 15deg);
    -moz-transform: rotate(-45deg) skew(15deg, 15deg);
    -ms-transform: rotate(-45deg) skew(15deg, 15deg);
    -o-transform: rotate(-45deg) skew(15deg, 15deg);
    transform: rotate(-45deg) skew(15deg, 15deg);
}
.left {
    background: blue;
    -webkit-transform: rotate(15deg) skew(15deg, 15deg) translate(-50%, 100%);
    -moz-transform: rotate(15deg) skew(15deg, 15deg) translate(-50%, 100%);
    -ms-transform: rotate(15deg) skew(15deg, 15deg) translate(-50%, 100%);
    -o-transform: rotate(15deg) skew(15deg, 15deg) translate(-50%, 100%);
    transform: rotate(15deg) skew(15deg, 15deg) translate(-50%, 100%);
}
.right {
    background: green;
    -webkit-transform: rotate(-15deg) skew(-15deg, -15deg) translate(50%, 100%);
    -moz-transform: rotate(-15deg) skew(-15deg, -15deg) translate(50%, 100%);
    -ms-transform: rotate(-15deg) skew(-15deg, -15deg) translate(50%, 100%);
    -o-transform: rotate(-15deg) skew(-15deg, -15deg) translate(50%, 100%);
    transform: rotate(-15deg) skew(-15deg, -15deg) translate(50%, 100%);
}