SOURCE

<div id="app">
    <div class="wrapper">
        <div class="content">
            <div class="title">
                满减优惠券
            </div>
            <div class="time">
                有效期至: 2018-01-25
            </div>
        </div>
        <div class="split-line"></div>
        <div class="tip">
            <div class="money">
                $10
            </div>
            <div class="pay-line">
                满1000元减
            </div>
        </div>
    </div>
</div>

 

#app {
    width: 800px;
    padding: 50px;
    background: #eee;
}
.wrapper {
    width: 600px;
    display: flex;
    background: #fff;
    border-radius: 8px;
}
.content {
    flex: 1;
    padding: 20px;
    border-radius: 8px 0 0 8px;
    box-shadow: -2px 2px 2px #ccc;
    background: #fff;
}
.title {
    font-size: 24px;
}
.time {
    margin-top: 30px;
    font-size: 18px;
    color: #9E9E9E;
}
.tip {
    position: relative;
    flex: 0 0 100px;
    text-align: center;
    color: #ff4242;
    padding: 20px;
    border-radius:0 8px 8px 0;
    box-shadow: 2px 2px 2px #ccc;
    background: #fff;
}
.split-line {
    position: relative;
    flex: 0 0 0;
    border-left: 2px dashed #eee;
    margin: 0 5px 0 3px;
    background: #fff;
}
.split-line:before, .split-line:after {
    content: '';
    position: absolute;
    width: 16px;
    height: 8px;
    background: #eee;
    left: -9px;
    z-index: 1;
}
.split-line:before {
    border-radius: 0 0 8px 8px;
    top: 0;
}
.split-line:after {
    border-radius: 8px 8px 0 0;
    bottom: 0;
}
.money {
    font-weight: bold;
    font-size: 24px;
}
.pay-line {
    margin-top: 30px;
    font-size: 16px;
}