如何让我的元素彼此独立悬停？

Question

为什么这些块在悬停时相互依赖？如何让它们独立悬停？截至目前，第一个list__item取决于第二个list__item。

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.list {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    margin: 0;
    padding: 0;
}
.list__item {
    background: none;
    border: 1px solid grey;
    list-style: none outside;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 23.72%;
    margin: 0 0 20px 1.7%;
    word-wrap: break-word;
}
.list__item:hover .list__descr {
    display: block;
}
.list__name {
    font-size: 14px;
    color: #333;
    font-weight: 700;
    line-height: 1.286;
    padding: 20px 8px;
    height: 73px;
}
.list__descr {
    display: none;
    padding: 0 8px;
    font-size: 12px;
    color: #505050;
}
.list__descr-more {
    font-size: 11px;
    color: #787878;
    line-height: 1.909;
    padding-left: 10px;
    padding-bottom: 10px;
}

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<ul class="list">
    <li class="list__item">
        <div class="list__img">
        </div>
        <div class="list__title">
            Lorem ipsum dolor sit amet, consectetur.
        </div>
        <p class="list__descr">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Vitae, pariatur! Quasi sed eaque praesentium ea odio voluptatibus repudiandae commodi, ut cupiditate perferendis voluptate provident, nobis ullam doloribus accusantium omnis perspiciatis.</p>
        <div class="list__descr-more">Lorem ipsum dolor.</div>
    </li>
    <li class="list__item">
        <div class="list__img">
        </div>
        <div class="list__title">
            Lorem ipsum dolor sit amet, consectetur.
        </div>
        <p class="list__descr">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Vitae, pariatur! Quasi sed eaque praesentium ea odio voluptatibus repudiandae commodi, ut cupiditate perferendis voluptate provident, nobis ullam doloribus accusantium omnis perspiciatis.</p>
        <div class="list__descr-more">Lorem ipsum dolor.</div>
    </li>
</ul>

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Answer 1

这是因为align-items: stretch是默认并且 flex-items stretch到填充 交叉轴上的 flex-container ，其高度由高度决定>“最高”一个。

因此，为了防止只是将值更改为flex-start，然后保留其高度：

.list {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start; /* modified */
  margin: 0;
  padding: 0;
}

.list__item {
  background: none;
  border: 1px solid grey;
  list-style: none outside;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 23.72%;
  margin: 0 0 20px 1.7%;
  word-wrap: break-word;
}

.list__item:hover .list__descr {
  display: block;
}

.list__name {
  font-size: 14px;
  color: #333;
  font-weight: 700;
  line-height: 1.286;
  padding: 20px 8px;
  height: 73px;
}

.list__descr {
  display: none;
  padding: 0 8px;
  font-size: 12px;
  color: #505050;
}

.list__descr-more {
  font-size: 11px;
  color: #787878;
  line-height: 1.909;
  padding-left: 10px;
  padding-bottom: 10px;
}

<ul class="list">
  <li class="list__item">
    <div class="list__img"></div>
    <div class="list__title">
      Lorem ipsum dolor sit amet, consectetur.
    </div>
    <p class="list__descr">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Vitae, pariatur! Quasi sed eaque praesentium ea odio voluptatibus repudiandae commodi, ut cupiditate perferendis voluptate provident, nobis ullam doloribus accusantium omnis perspiciatis.</p>
    <div class="list__descr-more">Lorem ipsum dolor.</div>
  </li>
  <li class="list__item">
    <div class="list__img"></div>
    <div class="list__title">
      Lorem ipsum dolor sit amet, consectetur.
    </div>
    <p class="list__descr">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Vitae, pariatur! Quasi sed eaque praesentium ea odio voluptatibus repudiandae commodi, ut cupiditate perferendis voluptate provident, nobis ullam doloribus accusantium omnis perspiciatis.</p>
    <div class="list__descr-more">Lorem ipsum dolor.</div>
  </li>
</ul>