Css 垂直粘性菜单的100%高度-不'；行不通

我正试图使我的粘性左菜单适合我的内容高度，但我无法做到这一点

我尝试将

height:100%

添加到所有parents div，但什么也没发生

我的代码是：（before is and）

---

vh

将解决您的问题

而不是像素或百分比值。使用表示“视口高度”的

vh

高度为100vh的元素将被赋予视口全高的高度

.container-menu {
  position: absolute;
  top: 65px;
  padding-top: 10px;
  left: 0;
  width: 62px;
  height: 100vh;
  background-color: $navy;
  border: solid $white;
  border-width: 0 1px 0 0;
  z-index: 1001;
  transition: all .5s ease-in-out;


  .control {
    display: flex;
    justify-content: center;
    align-items: center;
    //width: 50px;
    margin-bottom: 10px;
    color: $white;
    i {
      font-size: 2rem;
      cursor: pointer;
      transition: all .5s ease-in-out;
    }
  }

  &.show {
    width: 170px;
    .control > i {
      color: $white;
      transform: rotateZ(-180deg);
    }
  }

  .navigation-icons-menu {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 50px;
    float: left;
    i {
      color: $white;
      font-size: 2rem;
      padding: 10px 0;
      cursor: pointer;
      transition: all .5s ease-in-out;
      &:hover {
      color: $white;
      }
    }
  }
  .navigation-links-menu {
    //padding:14px;
    float: left;
    color: $white;
    div {
      font-size: 1.35rem;
      padding: 10px;
      cursor: pointer;
      @include breakpoint-only(tablet) {
        font-size: 7px;
        padding: 10px 5px;
      }
      a {
        color: $white;
      }
    }
  }
}

---

vh

将解决您的问题

而不是像素或百分比值。使用表示“视口高度”的

vh

高度为100vh的元素将被赋予视口全高的高度

.container-menu {
  position: absolute;
  top: 65px;
  padding-top: 10px;
  left: 0;
  width: 62px;
  height: 100vh;
  background-color: $navy;
  border: solid $white;
  border-width: 0 1px 0 0;
  z-index: 1001;
  transition: all .5s ease-in-out;


  .control {
    display: flex;
    justify-content: center;
    align-items: center;
    //width: 50px;
    margin-bottom: 10px;
    color: $white;
    i {
      font-size: 2rem;
      cursor: pointer;
      transition: all .5s ease-in-out;
    }
  }

  &.show {
    width: 170px;
    .control > i {
      color: $white;
      transform: rotateZ(-180deg);
    }
  }

  .navigation-icons-menu {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 50px;
    float: left;
    i {
      color: $white;
      font-size: 2rem;
      padding: 10px 0;
      cursor: pointer;
      transition: all .5s ease-in-out;
      &:hover {
      color: $white;
      }
    }
  }
  .navigation-links-menu {
    //padding:14px;
    float: left;
    color: $white;
    div {
      font-size: 1.35rem;
      padding: 10px;
      cursor: pointer;
      @include breakpoint-only(tablet) {
        font-size: 7px;
        padding: 10px 5px;
      }
      a {
        color: $white;
      }
    }
  }
}

---

为了使元素能够具有

高度：100%

，它的父元素需要具有固定的大小。否则，浏览器不知道如何计算100%的值。要使元素具有

高度：100%

，它的父元素需要具有固定的大小。否则，浏览器不知道如何计算100%是多少。

.container-menu {
  position: absolute;
  top: 65px;
  padding-top: 10px;
  left: 0;
  width: 62px;
  height: 100vh;
  background-color: $navy;
  border: solid $white;
  border-width: 0 1px 0 0;
  z-index: 1001;
  transition: all .5s ease-in-out;


  .control {
    display: flex;
    justify-content: center;
    align-items: center;
    //width: 50px;
    margin-bottom: 10px;
    color: $white;
    i {
      font-size: 2rem;
      cursor: pointer;
      transition: all .5s ease-in-out;
    }
  }

  &.show {
    width: 170px;
    .control > i {
      color: $white;
      transform: rotateZ(-180deg);
    }
  }

  .navigation-icons-menu {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 50px;
    float: left;
    i {
      color: $white;
      font-size: 2rem;
      padding: 10px 0;
      cursor: pointer;
      transition: all .5s ease-in-out;
      &:hover {
      color: $white;
      }
    }
  }
  .navigation-links-menu {
    //padding:14px;
    float: left;
    color: $white;
    div {
      font-size: 1.35rem;
      padding: 10px;
      cursor: pointer;
      @include breakpoint-only(tablet) {
        font-size: 7px;
        padding: 10px 5px;
      }
      a {
        color: $white;
      }
    }
  }
}