我有一个 70 像素高的标题,我想要填充屏幕其余部分的主要内容,然后是 70 像素的页脚。我试图找到隐藏页脚的最简单方法。这适用于footer在视图中 - 看到jsfiddle和下面的片段:
* {
margin: 0;
padding: 0;
}
*,
*::before,
*::after {
box-sizing: border-box;
}
body {
display: grid;
margin: 0px;
grid-gap: 10px;
height: 100vh;
grid-template-columns: [side__nav] 250px [main] 1fr;
grid-template-rows: [header] 70px auto [footer] 70px;
}
.header {
grid-column: main;
grid-row: 1;
background: pink;
}
.side__nav {
grid-column: side__nav;
grid-row: 1/span 3;
background: red;
}
.content {
grid-column: main;
grid-row: 2;
background: green;
}
.footer {
grid-column: main;
grid-row: 3;
background: purple;
opacity: 0.5;
}
.a {
grid-column: col/span 2;
grid-row: row;
}
.b {
grid-column: col 3/span 2;
grid-row: row;
}
.c {
grid-column: col/span 2;
grid-row: row 2;
}
.d {
grid-column: col 3/span 2;
grid-row: row 2;
display: grid;
grid-gap: 10px;
grid-template-columns: 1fr 1fr;
}
.e {
grid-column: 1/3;
grid-row: 1;
}
.f {
grid-column: 1;
grid-row: 2;
}
.g {
grid-column: 2;
grid-row: 2;
}
<header class="header">header</header>
<nav class="side__nav">side__nav</nav>
<content class="content">content</content>
<footer class="footer">footer</footer>
但我想将其推离屏幕,这样我就可以在需要时使用按钮来显示。我尝试过使用grid-template-rows: [header] 70px calc(100vh - 70px) [footer] 70px
这确实给了我我想要看到的效果jsfiddle和下面的片段:
* {
margin: 0;
padding: 0;
}
*, *::before, *::after {
box-sizing: border-box;
}
body {
display: grid;
margin: 0px;
grid-gap: 10px;
height: 100vh;
grid-template-columns: [side__nav] 250px [main] 1fr;
grid-template-rows: [header] 70px calc(100vh - 70px) [footer] 70px;
}
.header {
grid-column: main;
grid-row: 1;
background: pink;
}
.side__nav {
grid-column: side__nav;
grid-row: 1/span 3;
background: red;
}
.content {
grid-column: main;
grid-row: 2;
background: green;
}
.footer {
grid-column: main;
grid-row: 3;
background: purple;
opacity: 0.5;
}
.a {
grid-column: col/span 2;
grid-row: row;
}
.b {
grid-column: col 3/span 2;
grid-row: row;
}
.c {
grid-column: col/span 2;
grid-row: row 2;
}
.d {
grid-column: col 3/span 2;
grid-row: row 2;
display: grid;
grid-gap: 10px;
grid-template-columns: 1fr 1fr;
}
.e {
grid-column: 1/3;
grid-row: 1;
}
.f {
grid-column: 1;
grid-row: 2;
}
.g {
grid-column: 2;
grid-row: 2;
}
<header class="header">header</header>
<nav class="side__nav">side__nav</nav>
<content class="content">content</content>
<footer class="footer">footer</footer>
但问题是,如果我使用grid-gap: 10px
我必须
计算出在grid-template-rows
如果我添加的话就会变得混乱
更多部分。
例如,3个部分将有2个间隙,如果我将间隙设置为10px,则总数将为20px,加上页脚的70px,即总共为90px。如果有人接管了代码,他们需要知道他们需要手动将其添加到grid-template-row
我知道会错过的线路。有人有一个我缺少的简单想法吗?
您可以删除您的footer
来自显式网格(改变你的显式网格行定义为grid-template-rows: [header] 70px 1fr
并删除grid-row: 3
from footer
)并设置网格容器高度至calc(100vh + 70px)
并设置隐式网格行(这是你的footer
高度)使用grid-auto-rows: 70px
.
请参阅下面的演示普通CSS:
* {
margin: 0;
padding: 0;
}
*, *::before, *::after {
box-sizing: border-box;
}
body {
display: grid;
margin: 0px;
grid-gap: 10px;
height: calc(100vh + 70px); /* adding footer height */
grid-template-columns: [side__nav] 250px [main] 1fr;
grid-template-rows: [header] 70px 1fr; /* removed footer from here */
grid-auto-rows: 70px; /* implicit grid height - footer height */
}
.header {
grid-column: main;
grid-row: 1;
background: pink;
}
.side__nav {
grid-column: side__nav;
grid-row: 1/span 3;
background: red;
}
.content {
grid-column: main;
grid-row: 2;
background: green;
}
.footer {
grid-column: main;
/*grid-row: 3;*/
background: purple;
opacity: 0.5;
}
.a {
grid-column: col/span 2;
grid-row: row;
}
.b {
grid-column: col 3/span 2;
grid-row: row;
}
.c {
grid-column: col/span 2;
grid-row: row 2;
}
.d {
grid-column: col 3/span 2;
grid-row: row 2;
display: grid;
grid-gap: 10px;
grid-template-columns: 1fr 1fr;
}
.e {
grid-column: 1/3;
grid-row: 1;
}
.f {
grid-column: 1;
grid-row: 2;
}
.g {
grid-column: 2;
grid-row: 2;
}
<header class="header">header</header>
<nav class="side__nav">side__nav</nav>
<content class="content">content</content>
<footer class="footer">footer</footer>
但你又必须做这些混乱的计算当新部分添加到网格时。一个更多动态选项就是要保留一个网格项(零宽度adjuster
下面演示中的元素)仅用于设置布局高度:
请参阅下面的演示:
* {
margin: 0;
padding: 0;
}
*, *::before, *::after {
box-sizing: border-box;
}
body {
display: grid;
margin: 0px;
grid-gap: 10px;
grid-template-columns: [side__nav] 250px [main] 1fr;
grid-template-rows: [header] 70px 1fr; /* removed footer from here */
grid-auto-rows: 70px; /* implicit grid height - footer height */
}
.header {
grid-column: main;
grid-row: 1;
background: pink;
}
.side__nav {
grid-column: side__nav;
grid-row: 1/span 3;
background: red;
}
.content {
grid-column: main;
grid-row: 2;
background: green;
}
.footer {
grid-column: main;
/*grid-row: 3;*/
background: purple;
opacity: 0.5;
}
.a {
grid-column: col/span 2;
grid-row: row;
}
.b {
grid-column: col 3/span 2;
grid-row: row;
}
.c {
grid-column: col/span 2;
grid-row: row 2;
}
.d {
grid-column: col 3/span 2;
grid-row: row 2;
display: grid;
grid-gap: 10px;
grid-template-columns: 1fr 1fr;
}
.e {
grid-column: 1/3;
grid-row: 1;
}
.f {
grid-column: 1;
grid-row: 2;
}
.g {
grid-column: 2;
grid-row: 2;
}
.adjuster { /* grid items spanning two rows with explicit height set */
width: 0;
position: relative;
z-index: -1;
grid-column: 1;
grid-row: 1 / span 2;
height: 100vh;
}
section { /* new sections added*/
background: cadetblue;
}
<header class="header">header</header>
<nav class="side__nav">side__nav</nav>
<content class="content">content</content>
<footer class="footer">footer</footer>
<!-- height adjuster for viewport -->
<span class="adjuster"></span>
<!-- other page sections below -->
<section></section>
<section></section>
摘录于implicit and explicit来自 MDN 的网格:
The implicit and explicit grid (MDN)
如果您将某些内容放置在定义的网格之外,或者由于
内容量越大,需要更多的网格轨道——然后网格创建
中的行和列隐式网格。这些轨道将自动调整大小
默认情况下,导致它们的大小基于内容
在他们里面。
您还可以为隐式网格中创建的轨迹定义设定大小
与grid-auto-rows
and grid-auto-columns
特性。
您可以阅读更多有关显式和隐式网格 here: CSS Grid 自动添加不需要的列
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