SOURCE

<div class="box">
    <div class="btn">按钮</div>
    <p>这是一段文本</p>
</div>

.box{
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 200px;
    width: 300px;
    background-color: #ddd;
}
.box .btn{
    display: inline-block;
    font-size: 23px;
    font-weight: 400;
    color: #FD5403;
    height: 40px;
    line-height: 40px;
    background: rgba(253,84,3,.15);
    border-radius: 12px;
    padding: 0 12px;
    margin:4px 0 0;
}