<view class="viewRadius"><view></view></view>
.viewRadius{ border: 10px solid #FFFFFF; border-left: 10px solid transparent; border-top: 10px solid transparent; border-bottom-right-radius: 3px; width: 0; }
<view class="viewRadius"><view></view></view>
.viewRadius{ border: 10px solid #FFFFFF; border-left: 10px solid transparent; border-top: 10px solid transparent; border-bottom-right-radius: 3px; width: 0; }