tk-mini-program/unpackage/dist/dev/mp-weixin/TUIKit/components/TUIChat/chat-header/index.wxss

.Return {
  width: 46rpx;
  height: 46rpx;
  position: absolute;
  top: 110rpx;
  left: 40rpx;
  z-index: 999;
  font-weight: bold;
}
.Navigationimg {
  width: 100%;
  height: 240rpx;
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
}
.Navigation-name{
  position: absolute;
  top: 110rpx;
  left: 320rpx;
  font-size: 36rpx;
  color: #000000;
  font-weight: bold;
}
.Navigation{
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  width: 100%;
  height: 240rpx;
}