<style>
.demo--label{margin:20px 20px 0 0;display:inline-block}
.demo--radio{display:none}
.demo--radioInput{background-color:#fff;border:2px solid rgba(0,0,0,0.15);border-radius:100%;display:inline-block;height:36px;margin-right:10px;margin-top:-1px;vertical-align:middle;width:36px;line-height:1}
.demo--radio:checked + .demo--radioInput:after{background-color:#00A1E9;border-radius:100%;content:"";display:inline-block;height:26px;margin-left:5px;margin-top:5px;width:26px}
.demo--checkbox.demo--radioInput,.demo--radio:checked + .demo--checkbox.demo--radioInput:after{border-radius:0}
.demo--radio:checked + .demo--radioInput{border:2px solid #00A1E9;}
</style>
<label class="demo--label">
    <input class="demo--radio" type="radio" name="demo-radio">
    <span class="demo--radioInput"></span>先生
</label>
<label class="demo--label">
    <input class="demo--radio" type="radio" name="demo-radio">
    <span class="demo--radioInput"></span>女士
</label>