html5中制作radio的效果

<div class="roundedOne">
    <input type="checkbox" value="None" id="roundedOne" name="check" checked="">
    <label for="roundedOne"></label>
</div>

.roundedOne {
    width: 24px;
    height: 24px;
    position: relative;
  display: inline-block;
    background: #fcfff4;
    background: -moz-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
    background: -webkit-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
    background: linear-gradient(to bottom, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
    -moz-border-radius: 50%;
    -webkit-border-radius: 50px;
    border-radius:50%;
    -moz-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0, 0, 0, 0.5);
    -webkit-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0, 0, 0, 0.5);
    box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0, 0, 0, 0.5);
}
.roundedOne label {
    width: 18px;
    height: 18px;
    cursor: pointer;
    position: absolute;
    left: 3px;
    top: 3px;
    background: -moz-linear-gradient(top, #222222 0%, #45484d 100%);
    background: -webkit-linear-gradient(top, #222222 0%, #45484d 100%);
    background: linear-gradient(to bottom, #222222 0%, #45484d 100%);
    -moz-border-radius: 50%;
    -webkit-border-radius: 50px;
    border-radius: 50%;
    -moz-box-shadow: inset 0px 1px 1px rgba(0, 0, 0, 0.5), 0px 1px 0px white;
    -webkit-box-shadow: inset 0px 1px 1px rgba(0, 0, 0, 0.5), 0px 1px 0px white;
    box-shadow: inset 0px 1px 1px rgba(0, 0, 0, 0.5), 0px 1px 0px white;
}
.roundedOne label:after {
    content: '';
    width: 14px;
    height: 14px;
    position: absolute;
    top: 2px;
    left: 2px;
    background: #00bf00;
    background: -moz-linear-gradient(top, #00bf00 0%, #009400 100%);
    background: -webkit-linear-gradient(top, #00bf00 0%, #009400 100%);
    background: linear-gradient(to bottom, #00bf00 0%, #009400 100%);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);
    opacity: 0;
    -moz-border-radius: 50px;
    -webkit-border-radius: 50px;
    border-radius: 50px;
    -moz-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0, 0, 0, 0.5);
    -webkit-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0, 0, 0, 0.5);
    box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0, 0, 0, 0.5);
}
.roundedOne label:hover::after {
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=30);
    opacity: 0.3;
}
.roundedOne input[type=checkbox] {
    visibility: hidden;
}
.roundedOne input[type=checkbox]:checked + label:after {
    filter: progid:DXImageTransform.Microsoft.Alpha(enabled=false);
    opacity: 1;
}
转:http://www.html5tricks.com/html5-css3-checkbox-styles.html