html - CSS 定位在父元素之外

Question

StackOverflow 社区大家好，

我需要你的帮助来解决 CSS 问题。对于我的一个元素，我需要设计一个纯 CSS 时间间隔查看器。由于图片总是比长文本更好，您可以在下面看到我的工作结果:

但是我不想将开始/结束时间放入时间间隔中，而是想将开始时间放置在顶部/左侧上方，将结束时间放置在底部/右侧下方。我想要这样的结果

这是 HTML:

<ul class="day-timeline">
  <li class="time-interval" style="left:4%; width:46%">
    <label class="time start-time">01:00</label>
    <label class="time end-time">12:00</label>
  </li>
  <li class="time-interval" style="left:58%; width:17%">
    <label class="time start-time">14:00</label>
    <label class="time end-time">18:00</label>
  </li>
</ul>

<ul class="day-timeline day-timeline-closed">
  <li class="time-interval closed">
    <label class="time">Closed</label>
  </li>
</ul>

这是 CSS:

* {
  box-sizing: border-box;
}
ul.day-timeline {
  padding: 0;
  border-left: 1px solid black;
  border-right: 1px solid black;
  height: 20px;
  overflow: hidden;
  position: relative;

  &:after {
    content: '';
    width: 100%;
    height: 1px;
    background: black;
    display: block;
    position: relative;
    top: 10px;
  }

  li {
    display: block;
    position: absolute;
    background-color: #bed4a7;
    border: 1px solid green;
    z-index: 1;
    padding-left: 5px;
    border-radius: 3px;
    height: 100%;
    font-weight: bold;
    width: 100%;

    &.closed {
      background-color: lightgray;
      border: 1px solid black;

      label {
        color :black;
      }
    }

    label {
      font-size: 0.75rem;
      color: green;

      &.start-time {
        position: absolute;
        top:-10px;
        left:0;
      }
    }

    label + label {
      &:before {
        content: '-';
        padding: 0 0.25rem;
      }
    }
  }
}

ul.day-timeline-closed {
  border: none;
}

您可以在这里看到它:https://codepen.io/zannkukai/pen/XWbYXjG .

尽管尝试了很多次，但我始终没有得到正确的结果:'(CSS大师是否能够帮助我解决我的问题。我认为问题出在label定位上。但是我使用了 position:absolute; top:-10px 标签范围超出了父级并且不显示:'(

label {
  font-size: 0.75rem;
  color: green;

  &.start-time {
    position: absolute;
    top:-10px;
    left:0;
  }
} 

非常感谢

Answer 1

从ul.day-timeline中删除overflow:hidden，然后您就可以在父元素之外写入时间。

听听 ul.day-timeline 归因:

ul.day-timeline {
  padding: 0;
  border-left: 1px solid black;
  border-right: 1px solid black;
  height: 20px;
  //overflow: hidden;
  position: relative;

并听到整个 css:

* {
  box-sizing: border-box;
}
ul.day-timeline {
  padding: 0;
  border-left: 1px solid black;
  border-right: 1px solid black;
  height: 20px;
  //overflow: hidden;
  position: relative;

  &:after {
    content: '';
    width: 100%;
    height: 1px;
    background: black;
    display: block;
    position: relative;
    top: 10px;
  }

  li {
    display: block;
    position: absolute;
    background-color: #bed4a7;
    border: 1px solid green;
    z-index: 1;
    padding-left: 5px;
    border-radius: 3px;
    height: 100%;
    font-weight: bold;
    width: 100%;

    &.closed {
      background-color: lightgray;
      border: 1px solid black;

      label {
        color :black;
      }
    }

    label {
      font-size: 0.75rem;
      color: green;

      &.start-time-first {
        position: absolute;
        top: -15px;
        left: 0px;
      }

      &.end-time-first {
        position: absolute;
        top: 20px;
        right: 5px;
      }
      &.start-time-second {
        position: absolute;
        top: -15px;
        left: 0px;
      }

      &.end-time-second {
        position: absolute;
        top: 20px;
        right: 5px;
      }
    }
  }
}

ul.day-timeline-closed {
  border: none;
}

以及您必须重命名以定位时间的类:

HTML 代码片段

  <li class="time-interval" style="left:4%; width:46%">
    <label class="time start-time-first">01:00</label>
    <label class="time end-time-first">12:00</label>
  </li>
  <li class="time-interval" style="left:58%; width:17%">
    <label class="time start-time-second">14:00</label>
    <label class="time end-time-second">18:00</label>
  </li>

看起来像这样 -> solution