使用overflow-y：auto时是否可以隐藏滚动条？

Question

旨在隐藏我使用的滚动条

      &:hover{
      max-height: calc(100vh - 100px);
      overflow:auto;
      }

但是，我的主要问题是包含侧边栏的元素的宽度发生了变化，从而为滚动部分留出了空间。有什么方法可以避免这种情况，或者完全隐藏滚动并仍然可以滚动？

这是我的CodePen，如果您觉得更简单：https://codepen.io/fergos2/pen/MWgLqgL?editors=1100

（（在下面的代码中没有嘴唇的地方找到）

感谢您帮助这个新手！

.container {
  width: 100%;
  margin: 0 auto;
  background-color: #eee;

  display: grid;
  grid-template-rows: min-content 1fr;
  grid-template-columns: 1fr 2fr 1fr;
  grid-gap: 15px;

  grid-template-areas: "head head head"
                       "leftbar main rightbar";

  & > * {
    background-color: pink;
    color: #ggg;
    font-size: 20px;
    font-family: sans-serif;
  }
}

  .pd {
    padding: 15px;
  }

  .header {
    grid-area: head;

    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 10;

    box-shadow: 0 15px #eee;
  }

  .left-sidebar {
    grid-area: leftbar;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;


    .left-inner {
      position: -webkit-sticky;
      position: sticky;
      top: 70px;

      &:hover{
      max-height: calc(100vh - 100px);
      overflow:auto;
      }


      // overflow-y: auto;
    }

    .box-1 {
      color: red;
      border: 1px solid purple;
      margin-bottom: 5px;
    }

    .footer {
      color: green;
      border: 1px solid purple;
    }
  }

  .main-content {
    grid-area: main;
  }

  .right-sidebar {
    grid-area: rightbar;

     display: flex;
     flex-direction: column;
     justify-content: flex-start;

      .box-2 {
        color: red;
        border: 1px solid purple;
        margin-bottom: 5px;
      }

      .box-3 {
        color: green;
        border: 1px solid purple;
      }

    .right-inner {
      position: -webkit-sticky;
      position: sticky;
      top: 70px;
    }
  }

<div class="container">
  <header class="header pd">Header</header>



    <div class="left-sidebar pd">
      <div class="left-inner">
        <div class="box-1 pd">
        Box-1
      </div>
      <footer class="footer pd">
        Footer
      </footer>
      </div>
    </div>

    <div class="main-content pd">
      Main content 
    </div>


    <div class="right-sidebar pd">
      <div class="right-inner">
              <div class="box-2 pd">
        Box-2
      </div>
      <div class="box-3 pd">
        Box-3
      </div>
      </div>
    </div>


</div>

UPDATE

它通过使用下面我的答案中显示的代码来工作。

Answer 1

::-webkit-scrollbar
{
  width: 0px;  /* for vertical scrollbars */
  height: 0px; /* for horizontal scrollbars */
}

::-moz-scrollbar {
  width: 0px;
  height: 0px;
}