gpt4 book ai didi

html - 为什么网格模板行跟踪模式不像网格模板列那样重复

转载 作者:行者123 更新时间:2023-11-28 14:14:33 27 4
gpt4 key购买 nike

这是一个简单的网格(一共有二十个.grid_item):

  <div class="grid">
<h1 class="grid_item">300 px row, 1fr column</h1>
<h1 class="grid_item">300 px row, 1fr column</h1>
<h1 class="grid_item">300 px row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">100 px row, 1fr column </h1>
<h1 class="grid_item">100 px row, 1fr column </h1>
<h1 class="grid_item">100 px row , 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
</div>

CSS:

.grid{
display: grid;
grid-template-columns: 1fr 1fr 1fr; /*Entire column is 1fr 1fr 1fr*/
grid-template-rows: 600px 1fr 100px; /*Only first three rowsare 600px 1fr 100px; ?*/
grid-gap: 20px;
}

注意:我要尝试解释的内容可以在这里看到:https://jsfiddle.net/xth3ky0m/3/

显示网格时,每<h1 class = "grid_item"><h1>根据grid-template-columns: 1fr 1fr 1fr;显示但只有前三行跟在 grid-template-rows: 300px 1fr 100px; 之后.在前三行之后,每一行都是 1fr . 300px 1fr 100px行模式不会像 1fr 1fr 1fr 那样自动重复列模式。为什么是这样?

最佳答案

默认情况下,CSS 网格布局会填充所有显式 行(请注意,显式 行或列是您使用 grid-template- 等属性指定的)列grid-template-rowsgrid-template-areas) 并根据需要创建新行(隐式 行)。此行为是由于 grid-auto-flow 属性引起的 - 请参阅以下 MDN 摘录:

grid-auto-flow: row

Is a keyword specifying that the auto-placement algorithm places items, by filling each row in turn, adding new rows as necessary. If neither row nor column is provided, row is assumed.


行方向自动流

这解释了为什么网格项填充一行中的所有显式列,然后移动到下一行创建一个隐式行如果需要的话。您可以使用 grid-auto-rows 属性指定隐式行(从示例中的第 4 行开始)的大小:

* {
box-sizing: border-box;
}

.grid {
display: grid;
grid-template-columns: 1fr 1fr 1fr;
grid-template-rows: 300px 1fr 100px;
grid-gap: 20px;
grid-auto-rows: 50px; /* size implicit rows */
}

.grid_item {
border: 1px solid rgb(0, 95, 197);
border-radius: 3px;
background-color: rgba(0, 95, 107, 0.8);
padding: 0.2em;
margin: 0; /* reset h1 margin to see grid better */
overflow: hidden; /* hide overflow text */
}
<body>
<div class="grid">
<h1 class="grid_item">300 px row, 1fr column</h1>
<h1 class="grid_item">300 px row, 1fr column</h1>
<h1 class="grid_item">300 px row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">100 px row, 1fr column </h1>
<h1 class="grid_item">100 px row, 1fr column </h1>
<h1 class="grid_item">100 px row , 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
</div>
</body>


列方向自动流动

此处的网格项填充列中的所有显式行,然后移动到下一列,如果需要,创建一个隐式列.您可以使用 grid-auto-columns 属性指定隐式列(从示例中的第 4 行开始)的大小:

* {
box-sizing: border-box;
}

.grid {
display: grid;
grid-template-columns: 1fr 1fr 1fr;
grid-template-rows: 300px 1fr 100px;
grid-gap: 20px;
grid-auto-flow: column; /* flow in column direction */
grid-auto-columns: 50px; /* size implicit columns */
}

.grid_item {
border: 1px solid rgb(0, 95, 197);
border-radius: 3px;
background-color: rgba(0, 95, 107, 0.8);
padding: 0.2em;
margin: 0; /* reset h1 margin to see grid better */
overflow: hidden; /* hide overflow text */
}
<body>
<div class="grid">
<h1 class="grid_item">300 px row, 1fr column</h1>
<h1 class="grid_item">300 px row, 1fr column</h1>
<h1 class="grid_item">300 px row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">100 px row, 1fr column </h1>
<h1 class="grid_item">100 px row, 1fr column </h1>
<h1 class="grid_item">100 px row , 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
<h1 class="grid_item">1fr row, 1fr column</h1>
</div>
</body>


所以来回答你的问题:

After the first three rows, each row is just 1fr.

它是 auto 而不是 1fr - 您可以使用 grid-auto-rows 属性控制它。

The 300px 1fr 100px row pattern does not automatically repeat like the 1fr 1fr 1fr column pattern.

默认情况下,

隐式 行是通过填充可用的显式 列创建的。如果你切换到 grid-auto-flow: column 你可以反过来。


您可以在此处阅读有关显式和隐式网格的更多信息:CSS Grid unwanted column added automatically

关于html - 为什么网格模板行跟踪模式不像网格模板列那样重复,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56062699/

27 4 0
Copyright 2021 - 2024 cfsdn All Rights Reserved 蜀ICP备2022000587号
广告合作:1813099741@qq.com 6ren.com