SOURCE

<div>
    <p style="font-size:18px;margin-top:30px;color:rgba(0,0,0,0.44)">约吗?</p>
    <label class="demo--label">
        <input class="demo--radio" type="radio" name="demo-radio">
        <span class="demo--radioInput"></span>约
    </label>
    <label class="demo--label">
        <input class="demo--radio" type="radio" name="demo-radio">
        <span class="demo--radioInput"></span>不约，叔叔我们不约
    </label>
</div>
<div contenteditable=false>
    <p style="font-size:18px;margin-top:30px;color:rgba(0,0,0,0.44)">你喜欢的电影明星是？</p>
  <p>
    <label class="demo--label"><input class="demo--radio" type="checkbox" name="demo-checkbox1">
        <span class="demo--checkbox demo--radioInput"></span>苍井空
    </label>
  </p>
    <label class="demo--label">
        <input class="demo--radio" type="checkbox" name="demo-checkbox2">
        <span class="demo--checkbox demo--radioInput"></span>波多野结衣
    </label>
    <label class="demo--label">
        <input class="demo--radio" type="checkbox" name="demo-checkbox3">
        <span class="demo--checkbox demo--radioInput"></span>罗玉凤
    </label>
</div>

.demo--label{margin:20px 20px 0 0;display:inline-block}
.demo--radio{display:none}
.demo--radioInput{background-color:#fff;border:1px solid rgba(0,0,0,0.15);border-radius:100%;display:inline-block;height:16px;margin-right:10px;margin-top:-1px;vertical-align:middle;width:16px;line-height:1}
.demo--radio:checked + .demo--radioInput:after{background-color:#57ad68;border-radius:100%;content:"";display:inline-block;height:12px;margin:2px;width:12px}
.demo--checkbox.demo--radioInput,.demo--radio:checked + .demo--checkbox.demo--radioInput:after{border-radius:0}