building_tx_mini_wx_rebuild/components/navigator/index.wxss

/* components/navigator/index.wxss */
.block {
  position: sticky;
  top: 0;
	z-index: 999999;
	width: 750rpx;
	overflow: hidden;
}
.bar {
  position: absolute;
  padding-left: 40rpx;
	width: 100%;
	
}
.flex {
  display: flex;
  align-items: center;
}
.white {
  color: white;
}
.black {
  color: black;
}
.black-arrow::before {
  content: '';
  display: inline-block;
  width: 16rpx;
  height: 16rpx;
  border-bottom: 3rpx solid black;
  border-left: 3rpx solid black;
  transform: rotate(45deg);
  margin-right: 5rpx;
}
.white-arrow::before {
  content: '';
  display: inline-block;
  width: 16rpx;
  height: 16rpx;
  border-bottom: 3rpx solid white;
  border-left: 3rpx solid white;
  transform: rotate(45deg);
  margin-right: 5rpx;
}