- 当前 Bug 的表现（可附上截图）

- 预期表现

    沾满整个宽

- 复现路径

- 提供一个最简复现 Demo

wxml:

<view class='line-c'></view>

<view class='it' wx:for="{{7}}" wx:key="{{index}}">

     <view class="l " wx:if="{{index+1>signInfo.newestObject.signIndex}}"></view>

       <view class="line {{index+1<=signInfo.newestObject.signIndex? 'l2' : ''}}"></view>

</view>

wxss: 

.line-c{

  width: 36rpx;

  height: 8rpx;

  background-color: #FAD868;

}

.r4>.it{

  display: flex;

  align-items: center;

}

.it>.l{

  width: 54rpx;

  height: 54rpx;

  border-radius: 50%;

  background-color: #fff;

}

.it:not(:last-child)>.line{

  width: 50rpx;

  height: 8rpx;

  background-color: #fff;

}

.it>.line{

  width: 36rpx;

  height: 8rpx;

  background-color: #fff;

}

.it>.l2{

  background-color: #FAD868!important;

}