grid-template

尝试一下

grid-template:
  "a a a" 40px
  "b c c" 40px
  "b c c" 40px / 1fr 1fr 1fr;

grid-template:
  "b b a" auto
  "b b c" 2ch
  "b b c" 1em / 20% 20px 1fr;

grid-template:
  "a a ." minmax(50px, auto)
  "a a ." 80px
  "b b c" auto / 2em 3em auto;

<section class="default-example" id="default-example">
  <div class="example-container">
    <div class="transition-all" id="example-element">
      <div>One</div>
      <div>Two</div>
      <div>Three</div>
    </div>
  </div>
</section>

#example-element {
  border: 1px solid #c5c5c5;
  display: grid;
  grid-gap: 10px;
  width: 200px;
}

#example-element :nth-child(1) {
  background-color: rgba(0, 0, 255, 0.2);
  border: 3px solid blue;
  grid-area: a;
}

#example-element :nth-child(2) {
  background-color: rgba(255, 0, 200, 0.2);
  border: 3px solid rebeccapurple;
  grid-area: b;
}

#example-element :nth-child(3) {
  background-color: rgba(94, 255, 0, 0.2);
  border: 3px solid green;
  grid-area: c;
}

所简写属性：grid-template-rows、grid-template-columns与grid-template-areas。

语法

/* 值为关键词 */
grid-template: none;

/* 为 grid-template-rows / grid-template-columns */
grid-template: 100px 1fr / 50px 1fr;
grid-template: auto 1fr / auto 1fr auto;
grid-template: [linename] 100px / [columnname1] 30% [columnname2] 70%;
grid-template: fit-content(100px) / fit-content(40%);

/* 为 grid-template-areas grid-template-rows / grid-template-column */
grid-template:
  "a a a"
  "b b b";
grid-template:
  "a a a" 20%
  "b b b" auto;
grid-template:
  [header-top] "a a a" [header-bottom]
  [main-top] "b b b" 1fr [main-bottom]
  / auto 1fr auto;

/* 为全局值 */
grid-template: inherit;
grid-template: initial;
grid-template: unset;

可设值

none

关键词，设上文“所简写属性”为none，即恢复默认设置。行列隐式生成，grid-auto-rows与grid-auto-columns定其尺寸。

<'grid-template-rows'> / <'grid-template-columns'>

指定grid-template-rows与grid-template-columns之值，并设grid-template-areas为none。

[ <line-names>? <string> <track-size>? <line-names>? ]+ [ / <explicit-track-list> ]?

设grid-template-areas为列得<string>、grid-template-columns为<explicit-track-list>（默认为none）、grid-template-rows为<track-size>（默认为auto）并拼接尺寸前后所定义之行。

注：轨道被用以与“ASCII art”（即字符画，此处指<string>）中行列逐一视觉对齐，故<explicit-track-list>中不允许repeat()。

注：grid可如此用，但将重置隐式网格属性。Use grid (as opposed to grid-template) to prevent these values from cascading in seperately.

形式语法

grid-template = 
  none                                                |
  [ <'grid-template-rows'> / <'grid-template-columns'> ]  |
  [ <line-names>? <string> <track-size>? <line-names>? ]+ [ / <explicit-track-list> ]?  

<grid-template-rows> = 
  none                       |
  <track-list>               |
  <auto-track-list>          |
  subgrid <line-name-list>?  

<grid-template-columns> = 
  none                       |
  <track-list>               |
  <auto-track-list>          |
  subgrid <line-name-list>?  

<line-names> = 
  '[' <custom-ident>* ']'  

<track-size> = 
  <track-breadth>                                   |
  minmax( <inflexible-breadth> , <track-breadth> )  |
  fit-content( <length-percentage [0,∞]> )          

<explicit-track-list> = 
  [ <line-names>? <track-size> ]+ <line-names>?  

<track-list> = 
  [ <line-names>? [ <track-size> | <track-repeat> ] ]+ <line-names>?  

<auto-track-list> = 
  [ <line-names>? [ <fixed-size> | <fixed-repeat> ] ]* <line-names>? <auto-repeat> [ <line-names>? [ <fixed-size> | <fixed-repeat> ] ]* <line-names>?  

<line-name-list> = 
  [ <line-names> | <name-repeat> ]+  

<track-breadth> = 
  <length-percentage [0,∞]>  |
  <flex [0,∞]>               |
  min-content                |
  max-content                |
  auto                       

<inflexible-breadth> = 
  <length-percentage [0,∞]>  |
  min-content                |
  max-content                |
  auto                       

<length-percentage> = 
  <length>      |
  <percentage>  

<track-repeat> = 
  repeat( [ <integer [1,∞]> ] , [ <line-names>? <track-size> ]+ <line-names>? )  

<fixed-size> = 
  <fixed-breadth>                                   |
  minmax( <fixed-breadth> , <track-breadth> )       |
  minmax( <inflexible-breadth> , <fixed-breadth> )  

<fixed-repeat> = 
  repeat( [ <integer [1,∞]> ] , [ <line-names>? <fixed-size> ]+ <line-names>? )  

<auto-repeat> = 
  repeat( [ auto-fill | auto-fit ] , [ <line-names>? <fixed-size> ]+ <line-names>? )  

<name-repeat> = 
  repeat( [ <integer [1,∞]> | auto-fill ] , <line-names>+ )  

<fixed-breadth> = 
  <length-percentage [0,∞]>  

示例

CSS

#page {
  display: grid;
  width: 100%;
  height: 200px;
  grid-template:
    [header-left] "head head" 30px [header-right]
    [main-left] "nav  main" 1fr [main-right]
    [footer-left] "nav  foot" 30px [footer-right]
    / 120px 1fr;
}

header {
  background-color: lime;
  grid-area: head;
}

nav {
  background-color: lightblue;
  grid-area: nav;
}

main {
  background-color: yellow;
  grid-area: main;
}

footer {
  background-color: red;
  grid-column: foot;
}

HTML

<section id="page">
  <header>Header</header>
  <nav>Navigation</nav>
  <main>Main area</main>
  <footer>Footer</footer>
</section>

结果

规范

浏览器兼容性

参见

• 相关 CSS 属性：grid-template-rows、grid-template-columns、grid-template-areas

• 网格布局指导：

  • CSS 网格中基于线的定位
  • 网格定义的简写规则

• 视频教程：_ Grid Template shorthand_