CSS 网格项


目录

    显示目录

网格容器的直接子元素自动成为网格项。

项目 1、2 和 5 设置为跨多列或多行。

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自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-item {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px;
  font-size: 30px;
}

.item1 {
  grid-column: 1 / span 2;
  grid-row: 1;
}

.item2 {
  grid-column: 3;
  grid-row: 1 / span 2;
}

.item5 {
  grid-column: 1 / span 3;
  grid-row: 3;
}
</style>
</head>
<body>

<h1>A Five Items Grid Layout</h1>

<div class="grid-container">
  <div class="grid-item item1">1</div>
  <div class="grid-item item2">2</div>
  <div class="grid-item item3">3</div>  
  <div class="grid-item item4">4</div>
  <div class="grid-item item5">5</div>
</div>

<p>Direct child elements(s) of the grid container automatically becomes grid items.</p>

<p>Item 1, 2, and 5 are set to span multiple columns or rows.</p>

</body>
</html>



子元素(项目)

网格容器包含网格项目

默认情况下,容器的每一行中的每一列都有一个网格项,但您可以设置网格项的样式,以便它们跨越多列和/或多行。


网格列属性:

grid-column 属性定义了 用于放置项目的列。

您可以定义项目的开始位置和结束位置。

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注意: grid-column 属性是 grid-column-startgrid-column-end 属性。

要放置项目,您可以参考行号,或使用关键字“span”来放置 定义项目将跨越多少列。

例子

使“item1”从第 1 列开始并在第 5 列之前结束:

 .item1 {
    
  grid-column: 1 / 5;
}

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}

.item1 {
  grid-column: 1 / 5;
}
</style>
</head>
<body>

<h1>The grid-column Property</h1>

<p>Use the <em>grid-column</em> property to specify where to place an item.</p>
<p>Item1 will start on column 1 and end before column 5:</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
  <div class="item7">7</div>
  <div class="item8">8</div>  
  <div class="item9">9</div>
  <div class="item10">10</div>
  <div class="item11">11</div>
  <div class="item12">12</div>
  <div class="item13">13</div>
  <div class="item14">14</div>
  <div class="item15">15</div>
</div>

</body>
</html>


例子

使“item1”从第 1 列开始并跨越 3 列:

 .item1 {
    
  grid-column: 1 / span 3;
}

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}

.item1 {
  grid-column: 1 / span 3;
}
</style>
</head>
<body>

<h1>The grid-column Property</h1>

<p>Use the <em>grid-column</em> property to specify where to place an item.</p>
<p>Item1 will start on column-line 1 and span 3 columns:</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
  <div class="item7">7</div>
  <div class="item8">8</div>  
  <div class="item9">9</div>
  <div class="item10">10</div>
  <div class="item11">11</div>
  <div class="item12">12</div>
  <div class="item13">13</div>
  <div class="item14">14</div>
  <div class="item15">15</div>
  <div class="item16">16</div>
</div>

</body>
</html>


例子

使“item2”从第 2 列开始并跨越 3 列:

 .item2 {
    
  grid-column: 2 / span 3;
}

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}

.item2 {
  grid-column: 2 / span 3;
}
</style>
</head>
<body>

<h1>The grid-column Property</h1>

<p>Use the <em>grid-column</em> property to specify where to place an item.</p>
<p>Item2 will start on column line 2 and span 3 columns:</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
  <div class="item7">7</div>
  <div class="item8">8</div>  
  <div class="item9">9</div>
  <div class="item10">10</div>
  <div class="item11">11</div>
  <div class="item12">12</div>
  <div class="item13">13</div>
  <div class="item14">14</div>
  <div class="item15">15</div>
  <div class="item16">16</div>
</div>

</body>
</html>



网格行属性:

grid-row 属性定义要在哪一行上 放置一个项目。

您可以定义项目的开始位置和结束位置。

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注意: grid-row 属性是 grid-row-startgrid-row-end 属性。

要放置项目,您可以参考行号,或使用关键字“span”来放置 定义项目将跨越多少行:

例子

使“item1”从第 1 行开始,到第 4 行结束:

 .item1 {
    
  grid-row: 1 / 4;
}

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}

.item1 {
  grid-row: 1 / 4;
}
</style>
</head>
<body>

<h1>The grid-row Property</h1>

<p>Use the <em>grid-row</em> property to specify where to place an item.</p>
<p>Item1 will start on row-line 1 and end on row-line 4:</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
  <div class="item7">7</div>
  <div class="item8">8</div>  
  <div class="item9">9</div>
  <div class="item10">10</div>
  <div class="item11">11</div>
  <div class="item12">12</div>
  <div class="item13">13</div>
  <div class="item14">14</div>
  <div class="item15">15</div>
  <div class="item16">16</div>
</div>

</body>
</html>


例子

使“item1”从第 1 行开始并跨越 2 行:

 .item1 {
    
  grid-row: 1 / span 2;
}

自己尝试一下→

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}

.item1 {
  grid-row: 1 / span 2;
}
</style>
</head>
<body>

<h1>The grid-row Property</h1>

<p>Use the <em>grid-row</em> property to specify where to place an item.</p>
<p>Item1 will start on row 1 and span 2 rows:</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
  <div class="item7">7</div>
  <div class="item8">8</div>  
  <div class="item9">9</div>
  <div class="item10">10</div>
  <div class="item11">11</div>
  <div class="item12">12</div>
  <div class="item13">13</div>
  <div class="item14">14</div>
  <div class="item15">15</div>
  <div class="item16">16</div>
  <div class="item17">17</div>
</div>

</body>
</html>




网格区域属性

grid-area 属性可以用作以下属性的简写属性:

grid-row-start
grid-column-start
grid-row-end
grid-column-end

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例子

使“item8”从行线 1 和列线 2 开始,并在行线 5 和列线 6 结束:

 .item8 {
    
  grid-area: 1 / 2 / 5 / 6;
}

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}

.item8 {
  grid-area: 1 / 2 / 5 / 6;
}
</style>
</head>
<body>

<h1>The grid-area Property</h1>

<p>You can use the <em>grid-area</em> property to specify where to place an item.</p>

<p>The syntax is:</p>
<p>grid-row-start / grid-column-start / grid-row-end / grid-column-end.</p>

<p>Item8 will start on row-line 1 and column-line 2, and end on row-line 5 column-line 6:</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
  <div class="item7">7</div>
  <div class="item8">8</div>  
  <div class="item9">9</div>
  <div class="item10">10</div>
  <div class="item11">11</div>
  <div class="item12">12</div>
  <div class="item13">13</div>
  <div class="item14">14</div>
  <div class="item15">15</div>
</div>

</body>
</html>


例子

使“item8”从行线 2 和列线 1 开始,跨 2 行 3 列:

 .item8 {
    
  grid-area: 2 / 1 / span 2 / span 3;
}

自己尝试一下→

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}

.item8 {
  grid-area: 2 / 1 / span 2 / span 3;
}
</style>
</head>
<body>

<h1>The grid-area Property</h1>

<p>You can use the <em>grid-area</em> property to specify where to place an item.</p>

<p>The syntax is grid-row-start / grid-column-start / grid-row-end / grid-column-end.</p>

<p>Item8 will start on row-line 2 and column-line 1, and span 2 rows and 3 columns:</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
  <div class="item7">7</div>
  <div class="item8">8</div>  
  <div class="item9">9</div>
  <div class="item10">10</div>
  <div class="item11">11</div>
  <div class="item12">12</div>
  <div class="item13">13</div>
</div>

</body>
</html>


命名网格项目

grid-area 属性还可用于为网格项指定名称。

Header

Menu

Main

Right

Footer

命名网格项可以通过网格容器的 grid-template-areas 属性引用。

例子

Item1 的名称为“myArea”,并跨越五列网格布局中的所有五列:

 .item1 {
  grid-area: 
  myArea;
}
.grid-container {
  grid-template-areas: 'myArea myArea 
  myArea myArea myArea';
} 

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
.item1 {
  grid-area: myArea;
}

.grid-container {
  display: grid;
  grid-template-areas: 'myArea myArea myArea myArea myArea';
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}
</style>
</head>
<body>

<h1>The grid-area Property</h1>

<p>You can use the <em>grid-area</em> property to name grid items.</p>

<p>You can refer to the name when you set up the grid layout, by using the <em>grid-template-areas</em> property on the grid container.</p>

<p>Item1, is called "myArea" and will take up the place of all five columns:</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
</div>

</body>
</html>


每行由撇号 (' ') 定义

每行中的列在撇号内定义,并用 空间。

注意:句号表示没有名称的网格项。

例子

让“myArea”跨越五列网格布局中的两列(句号 代表没有名称的项目):

 .item1 {
  grid-area: 
  myArea;
}
.grid-container {
  grid-template-areas: 'myArea myArea 
  . . .';
} 

自己尝试一下→

<!DOCTYPE html>
<html>
<head>
<style>
.item1 {
  grid-area: myArea;
}

.grid-container {
  display: grid;
  grid-template-areas: 'myArea myArea . . .';
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}
</style>
</head>
<body>

<h1>The grid-area Property</h1>

<p>You can use the <em>grid-area</em> property to name grid items.</p>

<p>You can refer to the name when you set up the grid layout, by using the <em>grid-template-areas</em> property on the grid container.</p>

<p>Item1, is called "myArea" and will take up the place of two columns (out of five):</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
  <div class="item7">7</div>
  <div class="item8">8</div>
  <div class="item9">9</div>
</div>

</body>
</html>


要定义两行,请在另一组撇号内定义第二行的列:

例子

使“item1”跨越两列两行:

 .grid-container {
  grid-template-areas: 'myArea myArea 
  . . .' 'myArea myArea . . .';
} 

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
.item1 {
  grid-area: myArea;
}

.grid-container {
  display: grid;
  grid-template-areas: 'myArea myArea . . .' 'myArea myArea . . .';
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}
</style>
</head>
<body>

<h1>The grid-area Property</h1>

<p>You can use the <em>grid-area</em> property to name grid items.</p>

<p>You can refer to the name when you set up the grid layout, by using the <em>grid-template-areas</em> property on the grid container.</p>

<p>Item1, is called "myArea" and will take up the place of two columns (out of five), and will span two rows:</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
  <div class="item7">7</div>
</div>

</body>
</html>


例子

命名所有项目,并制作一个现成的网页模板:

 .item1 { grid-area: header; }
.item2 { grid-area: menu; }
.item3 { 
  grid-area: main; }
.item4 { grid-area: right; }
.item5 { grid-area: 
  footer; }
.grid-container {
  grid-template-areas:
    
  'header header header header header header'
    'menu main 
  main main right right'
    'menu footer footer footer footer 
  footer';
} 

自己尝试一下→

<!DOCTYPE html>
<html>
<head>
<style>
.item1 { grid-area: header; }
.item2 { grid-area: menu; }
.item3 { grid-area: main; }
.item4 { grid-area: right; }
.item5 { grid-area: footer; }

.grid-container {
  display: grid;
  grid-template-areas:
    'header header header header header header'
    'menu main main main right right'
    'menu footer footer footer footer footer';
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}
</style>
</head>
<body>

<h1>The grid-area Property</h1>

<p>You can use the <em>grid-area</em> property to name grid items.</p>

<p>You can refer to the name when you set up the grid layout, by using the <em>grid-template-areas</em> property on the grid container.</p>

<p>This grid layout contains six columns and three rows:</p>

<div class="grid-container">
  <div class="item1">Header</div>
  <div class="item2">Menu</div>
  <div class="item3">Main</div>  
  <div class="item4">Right</div>
  <div class="item5">Footer</div>
</div>

</body>
</html>



项目的顺序

网格布局允许我们将项目放置在我们喜欢的任何位置。

HTML 代码中的第一项不必显示为网格中的第一项。

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例子

 .item1 { grid-area: 1 / 3 / 2 / 4; }
.item2 { grid-area: 2 / 3 / 3 / 4; }
  .item3 { grid-area: 1 / 1 / 2 / 2; }
.item4 { grid-area: 1 / 2 / 2 / 3; }
  .item5 { grid-area: 2 / 1 / 3 / 2; }
.item6 { grid-area: 2 / 2 / 3 / 3; }

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}

.item1 { grid-area: 1 / 3 / 2 / 4; }
.item2 { grid-area: 2 / 3 / 3 / 4; }
.item3 { grid-area: 1 / 1 / 2 / 2; }
.item4 { grid-area: 1 / 2 / 2 / 3; }
.item5 { grid-area: 2 / 1 / 3 / 2; }
.item6 { grid-area: 2 / 2 / 3 / 3; }
</style>
</head>
<body>

<h1>Sort the Items</h1>

<p>The grid items do not have to be displayed in the same order as they are written in the HTML code.</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
</div>

</body>
</html>


您可以使用媒体查询重新排列某些屏幕尺寸的顺序:

例子

 @media only screen and (max-width: 500px) {
  .item1 { grid-area: 1 / 
  span 3 / 2 / 4; }
  .item2 { grid-area: 3 / 3 / 4 / 4; }
  
  .item3 { grid-area: 2 / 1 / 3 / 2; }
  .item4 { grid-area: 2 / 2 / 
  span 2 / 3; }
  .item5 { grid-area: 3 / 1 / 4 / 2; }
  .item6 
  { grid-area: 2 / 3 / 3 / 4; }
}

自己尝试一下 →

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}

@media only screen and (max-width: 500px) {
  .item1 { grid-area: 1 / span 3 / 2 / 4; }
  .item2 { grid-area: 3 / 3 / 4 / 4; }
  .item3 { grid-area: 2 / 1 / 3 / 2; }
  .item4 { grid-area: 2 / 2 / span 2 / 3; }
  .item5 { grid-area: 3 / 1 / 4 / 2; }
  .item6 { grid-area: 2 / 3 / 3 / 4; }
}
</style>
</head>
<body>

<h1>Re-arange the Order on Small Devices</h1>

<p>Resize the window to 500 pixels see the effect.</p>

<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
</div>

</body>
</html>