scrollIntoView 使用与属性详解

效果图如下图所示

如果要想让元素滚动到指定位置

window.onload = function () {
  containerItems[6].scrollIntoView({ behavior: "smooth" });
};

js 代码

const containerItems = document.querySelectorAll(".container div");
const gobackTop = document.querySelector(".gobackTop");

window.onload = function () {
  containerItems[6].scrollIntoView({ behavior: "smooth" });
};

gobackTop.addEventListener("click", function () {
  window.scrollTo(0, 0);
});

html 元素

<div class="container">
  <div>
    <h1>1</h1>
  </div>
  <div>
    <h1>2</h1>
  </div>
  <div>
    <h1>3</h1>
  </div>
  <div>
    <h1>4</h1>
  </div>
  <div>
    <h1>5</h1>
  </div>
  <div>
    <h1>6</h1>
  </div>
  <div>
    <h1>7</h1>
  </div>
  <div>
    <h1>8</h1>
  </div>
  <div>
    <h1>9</h1>
  </div>
  <div>
    <h1>10</h1>
  </div>
  <div>
    <h1>11</h1>
  </div>
  <div>
    <h1>12</h1>
  </div>
  <div>
    <h1>13</h1>
  </div>
  <div>
    <h1>14</h1>
  </div>
  <div>
    <h1>15</h1>
  </div>
  <div>
    <h1>16</h1>
  </div>
</div>

<div class="gobackTop">返回顶部</div>

css 样式

html {
  /* 平滑滚动到顶部 */
  scroll-behavior: smooth;
}

.container {
  margin: 0 auto;
  width: 300px;
}

.container > div {
  width: 300px;
  height: 300px;
  text-align: center;
  line-height: 300px;
  background-color: #efcd11;
}

.gobackTop {
  position: fixed;
  bottom: 50px;
  right: 50px;
  width: 50px;
  height: 50px;
  background-color: #efcd11;
}