功能描述：移动端页面局部滚动（如下所示）

功能实现主要代码(代码只有主要功能实现的代码，不全，要理解摘取自己需要的部分)：

备注：重点就是class="textScroll"的样式，其余都是配角

<template>
  <div class="textScroll">
    <ul>
      <li class="textList">
        <div class="headImg"><img src="../../../src/assets/image/bg-header.jpg"></div>
        <p>ekffbhdslfbsdvlskvsdhvlsadvkshvawvoladhivsalvswqygrehsfdhdsfhjndsfnsdgnjdsgndsgnfgfngfnfnesfhbdsdierhvr</p>
      </li>
      <li class="textList">
        <div class="headImg"><img src="../../../src/assets/image/bg-header.jpg"></div>
        <p>ekffbhdslfbsdvlskvsdhvlsadvkshvawvola
          dhivsalvswqygrehsfdhdsfhjndsfnsdgnjdsgndsgnfgfngfnfnesfhbdsdierhvr</p>
      </li>
      <li class="textList">
        <div class="headImg"><img src="../../../src/assets/image/bg-header.jpg"></div>
        <p>ekffbhdslfbsdvlskvsdhvlsadvkshvawvola
          dhivsalvswqygrehsfdhdsfhjndsfnsdgnjdsgndsgnfgfngfnfnesfhbdsdierhvr</p>
      </li>
      <li class="textList">
        <div class="headImg"><img src="../../../src/assets/image/bg-header.jpg"></div>
        <p>ekffbhdslfbsdvlskvsdhvlsadvkshvawvola
          dhivsalvswqygrehsfdhdsfhjndsfnsdgnjdsgndsgnfgfngfnfnesfhbdsdierhvr</p>
      </li>
      <li class="textList">
        <div class="headImg"><img src="../../../src/assets/image/bg-header.jpg"></div>
        <p>ekffbhdslfbsdvlskvsdhvlsadvkshvawvola
          dhivsalvswqygrehsfdhdsfhjndsfnsdgnjdsgndsgnfgfngfnfnesfhbdsdierhvr</p>
      </li>
      <li class="textList">
        <div class="headImg"><img src="../../../src/assets/image/bg-header.jpg"></div>
        <p>ekffbhdslfbsdvlskvsdhvlsadvkshvawvola
          dhivsalvswqygrehsfdhdsfhjndsfnsdgnjdsgndsgnfgfngfnfnesfhbdsdierhvr</p>
      </li>
      <li class="textList">
        <div class="headImg"><img src="../../../src/assets/image/bg-header.jpg"></div>
        <p>ekffbhdslfbsdvlskvsdhvlsadvkshvawvola
          dhivsalvswqygrehsfdhdsfhjndsfnsdgnjdsgndsgnfgfngfnfnesfhbdsdierhvr</p>
      </li>
      <li class="textList">
        <div class="headImg"><img src="../../../src/assets/image/bg-header.jpg"></div>
        <p>ekffbhdslfbsdvlskvsdhvlsadvkshvawvola
          dhivsalvswqygrehsfdhdsfhjndsfnsdgnjdsgndsgnfgfngfnfnesfhbdsdierhvr</p>
      </li>
      <li class="textList">
        <div class="headImg"><img src="../../../src/assets/image/bg-header.jpg"></div>
        <p>ekffbhdslfbsdvlskvsdhvlsadvkshvawvola
          dhivsalvswqygrehsfdhdsfhjndsfnsdgnjdsgndsgnfgfngfnfnesfhbdsdierhvr</p>
      </li>
      <li class="textList">
        <div class="headImg"><img src="../../../src/assets/image/bg-header.jpg"></div>
        <p>ekffbhdslfbsdvlskvsdhvlsadvkshvawvola
          dhivsalvswqygrehsfdhdsfhjndsfnsdgnjdsgndsgnfgfngfnfnesfhbdsdierhvr</p>
      </li>
    </ul>
  </div>
</template>
<style lang="less" scoped>

  .textScroll {
    display: inline-block;
    position: fixed;
    top: 23.2rem;
    bottom: 0;
    overflow: scroll;
    right: 0;
    width: 100%;
    margin-bottom: 4.7rem;
    z-index: 1;
    background-color:rgb(241,243,244);
  }

</style>

红框内是局部滑动必备样式

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