vue 固定div 滚动_vue滚动条放在div上方

// 滚动条监听事件 将滚动条的scrollLeft 赋给下方的DIV
    handleScroll() {
      let goodsArrDiv = document.body.getElementsByClassName("goodsArrDiv")[0];
      let parentNewScrollBar = document.getElementById("parentNewScrollBar");
      this.$nextTick(() => {
        let goodsArrDiv = document.body.getElementsByClassName(
          "goodsArrDiv"
        )[0];
        goodsArrDiv.scrollLeft = parentNewScrollBar.scrollLeft;
      });
    },
 
// 将需要滚动的滚动条宽度赋给新滚动条
    setNewScrollBar() {
      setTimeout(() => {
        let goodsArrDiv = document.getElementsByClassName("goodsArrDiv")[0];
        let newScrollBar = document.getElementById("newScrollBar");
        if (newScrollBar) {
          newScrollBar.style.width = goodsArrDiv.scrollWidth + "px";
        }
      }, 500);
    },