在CSS网格中对齐列

时间:2018-10-20 04:00:16

标签: html css html5 css3 css-grid

我应该设置哪些CSS属性,以使各列​​相互包裹,而忽略水平相邻列的高度?

Desired layout for wrapping to fit 2 columns across.

尝试失败

我正在尝试使用display: grid来执行此操作,但是它并没有达到我想要的方式。一个例子:

header {
    height: 2.0rem;
    background: PeachPuff;
}
footer {
    height: 2.0rem;
    background: PaleGreen;
}

header,
footer,
section.app-column {
    padding: 1.0rem;
}

section#main section#app-column-primary {
    grid-area: primary;
    height: 5.0rem;
    background: Cyan;
}
section#main section#app-column-secondary {
    grid-area: secondary;
    height: 15.0rem;
    background: Thistle;
}
section#main section#app-column-tertiary {
    grid-area: tertiary;
    height: 10.0rem;
    background: Coral;
}

section#main {
    display: grid;
    grid-template-columns: repeat(3, 10.0rem);
    grid-row-gap: 0.2rem;
    grid-column-gap: 0.5rem;
}

section#main {
    content: "This application requires a display at least 200 pixels wide.";
}

@media(min-width: 200px) {
    section#main {
        grid-template-areas:
            "primary"
            "secondary"
            "tertiary";
    }
}

@media(min-width: 350px) {
    section#main {
        grid-template-areas:
            "primary secondary"
            "tertiary .";
    }
}

@media(min-width: 520px) {
    section#main {
        grid-template-areas:
            "primary secondary tertiary";
    }
}
<header>Header ipsum, dolor sit amet.</header>
<section id="main">
    <section class="app-column" id="app-column-primary">
        Primary app column
    </section>
    <section class="app-column" id="app-column-secondary">
        Secondary app column
    </section>
    <section class="app-column" id="app-column-tertiary">
        Tertiary app column
    </section>
</section>
<footer>Footer ipsum, dolor sit amet.</footer>

3列和1列的正确结果

这满足了三列("primary secondary tertiary")和一列("primary" "secondary" "tertiary")布局的需要。

Correct layout for 3 columns across. Correct layout for 1 column across.

不需要的2列布局

但是两列布局的tertiary列在secondary列的下方:

Incorrect layout for 2 columns across.

所需的2列布局

我想要的是让tertiary列的位置忽略secondary列,因为它们根本不会重叠:

Desired layout for wrapping to fit 2 columns across.

如何使用CSS做到这一点? display: grid是否适用于此?我应该使用display: flex还是其他的东西(如果是的话,我到底需要什么CSS属性)?

2 个答案:

答案 0 :(得分:2)

代替此:

@media(min-width: 350px) {
    section#main {
        grid-template-areas:
            "primary secondary"
            "tertiary .";
    }
}

...会创建一个2x2的网格,如下所示:

[ primary ] [ secondary ]

[tertiary ] [ empty space ]

...而这正是您所显示的问题:

enter image description here

执行以下操作:

@media(min-width: 350px) {
    section#main {
        grid-template-areas:
            "primary secondary"
            "tertiary secondary";
    }
}

jsFiddle demo

header {
  height: 2.0rem;
  background: PeachPuff;
}

footer {
  height: 2.0rem;
  background: PaleGreen;
}

header,
footer,
section.app-column {
  padding: 1.0rem;
}

section#main section#app-column-primary {
  grid-area: primary;
  height: 5.0rem;
  background: Cyan;
}

section#main section#app-column-secondary {
  grid-area: secondary;
  height: 15.0rem;
  background: Thistle;
}

section#main section#app-column-tertiary {
  grid-area: tertiary;
  height: 10.0rem;
  background: Coral;
}

section#main {
  display: grid;
  grid-template-columns: repeat(3, 10.0rem);
  grid-row-gap: 0.2rem;
  grid-column-gap: 0.5rem;
}

section#main {
  content: "This application requires a display at least 200 pixels wide.";
}

@media(min-width: 200px) {
  section#main {
    grid-template-areas: "primary" "secondary" "tertiary";
  }
}

@media(min-width: 350px) {
  section#main {
    grid-template-areas: "primary secondary" "tertiary secondary";
  }
}

@media(min-width: 520px) {
  section#main {
    grid-template-areas: "primary secondary tertiary";
  }
}
<header>Header ipsum, dolor sit amet.</header>
<section id="main">
  <section class="app-column" id="app-column-primary">
    Primary app column
  </section>
  <section class="app-column" id="app-column-secondary">
    Secondary app column
  </section>
  <section class="app-column" id="app-column-tertiary">
    Tertiary app column
  </section>
</section>
<footer>Footer ipsum, dolor sit amet.</footer>

答案 1 :(得分:1)

我尝试使用属性grid-row-endauto-fill为您提供解决方案。

第一:该解决方案可以很好地解决您的问题(可伸缩性不是很好,但是很不幸,如果不使用javascript,我认为没有完美的CSS解决方案)。

顺便说一句,它是这样工作的:

  • 我创建一个具有grid-template-columns: repeat(auto-fill, 10rem);属性的网格
  • 对于每个网格项目,我都放置一个grid-row-end: span [dimension]; =>,其中5rem放置[1],15rem放置[3],10 rem放置[2](这是我说“ >它不可扩展“'因为如果您更改尺寸,则也必须在此处更改)

对于所有这些属性,您可以在以下位置找到非常有用的信息:https://css-tricks.com/snippets/css/complete-guide-grid/和此处:https://rachelandrew.co.uk/archives/2017/01/18/css-grid-one-layout-method-not-the-only-layout-method/(我提到我的CSS专家,我有点激动(^ _ ^;))

这是运行中的代码:

header {
    height: 2.0rem;
    background: PeachPuff;
}
footer {
    height: 2.0rem;
    background: PaleGreen;
}

header,
footer,
section.app-column {
    padding: 1rem;
}

section#main section#app-column-primary {
    height: 5rem;
    grid-row-end: span 1;
    background: Cyan;
}
section#main section#app-column-secondary {
    grid-row-end: span 3;
    height: 15rem;
    background: Thistle;
}
section#main section#app-column-tertiary {
    grid-row-end: span 2;
    height: 10rem;
    background: Coral;
}

section#main {
    display: grid;
    grid-template-columns: repeat(auto-fill, 10rem);
    grid-row-gap: 0.5rem;
    grid-column-gap: 0.5rem;
}
<header>Header ipsum, dolor sit amet.</header>
<section id="main">
    <section class="app-column" id="app-column-primary">
        Primary app column
    </section>
    <section class="app-column" id="app-column-secondary">
        Secondary app column
    </section>
    <section class="app-column" id="app-column-tertiary">
        Tertiary app column
    </section>
</section>
<footer>Footer ipsum, dolor sit amet.</footer>

希望有帮助。干杯。

PS:另请参见属性grid-auto-flow: dense;,在现实世界中有一些限制,它可以帮助您将各种元素组合在一起(我将其删除到示例中,因为这里只有3个元素= > Rachel Andrew的文章对您非常有用,我认为)