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左侧边栏，全高，固定位置，需要在没有滚动条的情况下访问的内容溢出(这意味着没有 overflow: scroll)。我真的不想在 Javascript 中这样做。

几个月前，我在 CSS 中用 overflow: hidden 和其他东西完成了这个，现在我找不到代码或记得它是如何完成的。出于某种原因，谷歌对此毫无用处。这个侧边栏在我的网站上的右侧有内容，一直延伸到页面下方。栏本身在屏幕上垂直放置的空间不多。

我需要能够向下滚动此对象，无论它是固定的还是绝对的，并且它必须一直向下跨越页面的高度。滚动主要内容和侧边栏是独立的。到目前为止，即使设置为绝对，包装器也会在页面底部附近停止。

我已经尝试了position、float、overflow、height/max 的所有组合-height, top, bottom, left and display 我能想到的。也尝试了很多其他东西但没有运气。

非常感谢任何帮助。

CSS:

#left-wrap {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 3;
  max-width: 24em;
  height: 100%;  
  overflow: hidden;
  background-color: rgba(26,26,26,1);
}
#left-bar {
  max-width: 100%;
  max-height: none;
  position: relative;
}
#left-bar.sidebars .block {
  padding: 5%;
  border-right: none;
  margin:  5%;
  background-color: rgba(255,255,238,0.4);
  margin-bottom: 1.5em;
  font-size: 0.9em;
  overflow: hidden;
}
.sidebars .block ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.sidebars h2 {
  padding: 0;
  margin: 5% 10% 0;
  font-size: 1.75em;
  text-transform: lowercase;
  font-weight: 400;
  text-align: right;
  /*border-bottom: 1px dashed #9c561b;  
  color: #9c561b;
  text-shadow:#130b08 0 1px 0;*/
}
#left-wrap a {
  color: #FDC;
}

HTML:

<div id="left-wrap">
  <div id="left-bar" class="sidebars">
      <div class="block">
        <h2>Title One</h2>
        <ul class="menu">
          <li>Link One</li>
          <li>Link Two</li>
          <li>Link Twenty-five</li>
          <li>Link Seventy</li>
          <li>Link One Hundred Fifty-two</li>
          <li>Link Zero</li>
        </ul>
      </div>
      <div class="block">
        <h2>Title Two</h2>
        <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p>
        <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p>
      </div>      
      <div class="block">
        <h2>Title Three</h2>
        <ul class="menu">
          <li>Link One</li>
          <li>Link Two</li>
          <li>Link Twenty-five</li>
          <li>Link Seventy</li>
          <li>Link One Hundred Fifty-two</li>
          <li>Link Zero</li>
        </ul>
      </div>
      <div class="block">
        <h2>Title Four</h2>
        <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p>
        <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p>
      </div>      
      <div class="block">
        <h2>Title Five</h2>
        <ul class="menu">
          <li>Link One</li>
          <li>Link Two</li>
          <li>Link Twenty-five</li>
          <li>Link Seventy</li>
          <li>Link One Hundred Fifty-two</li>
          <li>Link Zero</li>
        </ul>
      </div>
      <div class="block">
        <h2>Title Six</h2>
        <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p>
        <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p>
      </div>      
      <div class="block">
        <h2>Title Seven</h2>
        <ul class="menu">
          <li>Link One</li>
          <li>Link Two</li>
          <li>Link Twenty-five</li>
          <li>Link Seventy</li>
          <li>Link One Hundred Fifty-two</li>
          <li>Link Zero</li>
        </ul>
      </div>
      <div class="block">
        <h2>Title Eight</h2>
        <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p>
        <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p>
      </div>
    </div>
  </div>

最佳答案

如果你可以设置父级的高度和宽度，left-wrap，你可以这样做:

#left-wrap {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0; /* Not sure why this is here */
  z-index: 3;
  max-width: 24em;
  max-height: none;  
  overflow: hidden;
  height:100%; /* Needs to be given a height and width as far as I know */
  width:1000px; /* They can be whatever dimensions you'd like, 'course */
  background-color: rgba(26,26,26,1);
}
#left-bar {
  max-width: 100%;
  max-height: 100%; /* Prevents it from auto sizing to its content */
  position:absolute;
  right: -20px; /* Shifts element to the right */
  padding-right: 10px; /* Uses padding to move element back into position */
  overflow-y: scroll; /* Makes sure that there is a scrollbar */
}

Demo Here

关于html - 没有滚动条的滚动元素与CSS，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19466750/