边框

<view class="padding bg-white text-center">
<view class="padding solid{{size?'s':''}}">四周</view>
<view class="padding solid{{size?'s':''}}-top margin-top">上</view>
<view class="padding solid{{size?'s':''}}-right margin-top">右</view>
<view class="padding solid{{size?'s':''}}-bottom margin-top">下</view>
<view class="padding solid{{size?'s':''}}-left margin-top">左</view>
</view>