Контент Flex не соответствует высоте родительского контента

Question

У меня есть следующий макет, это обертка (контент), которая содержит некоторые другие div, которые также имеют некоторые свойства flex.

Как вы можете видеть из следующей ссылки, div внутри контента теперь увеличиваютсяс размером содержимого.

.content {
  width: 100%;
  height: 400px;
  display: flex;
  overflow: auto;
  background-color: blue;
}

.a {
  width: 165px;
  height: 100%;
  flex-grow: 1;
  background-color: red;
}

.b {
  width: 65px;
  display: flex;
  padding-top: 20px;
  padding-bottom: 20px;
  justify-content: center;
  background-color: yellow;
  height: 100%;
}

.c {
  width: 165px;
  flex-grow: 1;
  margin-right: 15px;
  background-color: green;
  height: 100%;
}

<div class="content">
  <div class="a">
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has
    survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing
    software like Aldus PageMaker including versions of Lorem Ipsum. Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took
    a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets
    containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
  </div>
  <div class="b">
    <div class="separator">
      s
    </div>
  </div>
  <div class="c">
    c
  </div>
</div>

Чего я хотел бы достичь: - красные, желтые, зеленые div должны иметь высоту как синий (content) div, поэтому при прокрутке вы не видитесиняя часть внизу

Как этого добиться?Что не так с моим кодом?

Я поддерживаю только последнюю версию Chrome и могу использовать CSS3

Answer 1

Ваш .a переполняется в .content, поэтому вы видите синюю секцию, отображаемую внизу.

Давая .a или, точнее, всем дочерним элементам divавтоматическое переполнение, они будут следовать за высотой своих родителей и избегать переполнения содержимого.Если вы можете скрыть переполненный текст, используйте вместо него overflow: hidden.

.content {
  width: 100%;
  height: 400px;
  display: flex;
  overflow: auto;
  background-color: blue;
}

.content > div {
  overflow: auto;
}

.a {
  width: 165px;
  height: 100%;
  flex-grow: 1;
  background-color: red;
}

.b {
  width: 65px;
  padding-top: 20px;
  padding-bottom: 20px;
  background-color: yellow;
}

.c {
  width: 165px;
  margin-right: 15px;
  flex-grow: 1;
  background-color: green;
  height: 100%;
}

<div class="content">
  <div class="a">
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has
    survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing
    software like Aldus PageMaker including versions of Lorem Ipsum. Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took
    a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets
    containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
  </div>
  <div class="b">
    <div class="separator">
      s
    </div>
  </div>
  <div class="c">
    c
  </div>
</div>

Answer 2

Проблема здесь. Переполнение раздела.Когда вы связываете .content 400px высоту.Таким образом, есть два способа: вы можете либо освободить их, чтобы привязать высоту, либо использовать переполнение для раздела .aВы можете сравнить предыдущий и фиксированный код ниже.

.content {
  width: 100%;
  /*height: 400px;*/
  display: flex;
  overflow: auto;
  background-color: blue;
}

.a {
  width: 165px;
  /*height: 100%;*/
  flex-grow: 1;
  background-color: red;
}

.b {
  width: 65px;
  display: flex;
  padding-top: 20px;
  padding-bottom: 20px;
  justify-content: center;
  background-color: yellow;
  /*height: 100%;*/
  box-sizing: border-box;
}

.c {
  width: 165px;
  flex-grow: 1;
  margin-right: 15px;
  background-color: green;
  /*height: 100%;*/
}

<div class="content">
  <div class="a">
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has
    survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing
    software like Aldus PageMaker including versions of Lorem Ipsum. Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took
    a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets
    containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
  </div>
  <div class="b">
    <div class="separator">
      s
    </div>
  </div>
  <div class="c">
    c
  </div>
</div>

.content {
  width: 100%;
  height: 400px;
  display: flex;
  overflow: auto;
  background-color: blue;
}

.a {
  width: 165px;
  height: 100%;
  flex-grow: 1;
  background-color: red;
}

.b {
  width: 65px;
  display: flex;
  padding-top: 20px;
  padding-bottom: 20px;
  justify-content: center;
  background-color: yellow;
  height: 100%;
}

.c {
  width: 165px;
  flex-grow: 1;
  margin-right: 15px;
  background-color: green;
  height: 100%;
}

<div class="content">
  <div class="a">
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has
    survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing
    software like Aldus PageMaker including versions of Lorem Ipsum. Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took
    a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets
    containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
  </div>
  <div class="b">
    <div class="separator">
      s
    </div>
  </div>
  <div class="c">
    c
  </div>
</div>

Answer 3

Удалите display: flex из .content и height: 100% из .a .b .c, а затем оберните ваши элементы в div и дайте ему гибкий экран.

Рабочий код:

.content {
  width: 100%;
  height: 400px;
  overflow: auto;
  background-color: blue;
}

.inner{
  display: flex;
}

.a {
  width: 165px;
  flex-grow: 1;
  background-color: red;
}

.b {
  width: 65px;
  display: flex;
  padding-top: 20px;
  padding-bottom: 20px;
  justify-content: center;
  background-color: yellow;
}

.c {
  width: 165px;
  flex-grow: 1;
  margin-right: 15px;
  background-color: green;
}

<div class="content">
<div class="inner">
  <div class="a">
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has
    survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing
    software like Aldus PageMaker including versions of Lorem Ipsum. Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took
    a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets
    containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
  </div>
  <div class="b">
    <div class="separator">
      s
    </div>
  </div>
  <div class="c">
    c
  </div>
</div>
  
</div>

Answer 4

Я думаю, что лучшим вариантом для вашей проблемы является либо

• переходит overflow: auto; из класса .content в детей.
• изменив значение height: 400px; на min-height: 400px;, если у вас нет проблем с контейнером, размер которого превышает 400 пикселей;
• добавление оболочки div с height: 400px; и overflow: auto; вокруг .content и удаление обоих правил из .content (imo лучший вариант)

Answer 5

Вы можете попробовать:

flex: 1 1 auto

Размеры основаны на свойствах ширины / высоты.

проверить Статья об уловках Css.

EDIT

Удалите flex-grow: 1, и это будет нужная вам высота.

.content {


width: 100%;
  height: 400px;
  overflow: auto;
  background-color: blue;
}

.inner{
  display: flex;
}

.a {
  width: 165px;
  background-color: red;
}

.b {
  width: 65px;
  display: flex;
  padding-top: 20px;
  padding-bottom: 20px;
  justify-content: center;
  background-color: yellow;
}

.c {
  width: 165px;
  margin-right: 15px;
  background-color: green;
}