Sizing尺寸

~~Easily make an element as wide or as tall with our width and height utilities.~~使用宽度和高度实用程序，轻松地使元素变宽或变高。

~~On this page~~本页内容

Relative to the parent相对于父对象

~~Width and height utilities are generated from the utility API in _utilities.scss.~~ 宽度和高度实用程序是从_utilities.scss中的实用程序API生成的。~~Includes support for 25%, 50%, 75%, 100%, and auto by default.~~ 包括默认支持25%、50%、75%、100%和自动。~~Modify those values as you need to generate different utilities here.~~如果需要在此处生成不同的实用程序，请修改这些值。

Width 25%

Width 50%

Width 75%

Width 100%

Width auto

<div class="w-25 p-3" style="background-color: #eee;">Width 25%</div>
<div class="w-50 p-3" style="background-color: #eee;">Width 50%</div>
<div class="w-75 p-3" style="background-color: #eee;">Width 75%</div>
<div class="w-100 p-3" style="background-color: #eee;">Width 100%</div>
<div class="w-auto p-3" style="background-color: #eee;">Width auto</div>

Height 25%

Height 50%

Height 75%

Height 100%

Height auto

<div style="height: 100px; background-color: rgba(255,0,0,0.1);">
<div class="h-25 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 25%</div>
<div class="h-50 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 50%</div>
<div class="h-75 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 75%</div>
<div class="h-100 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 100%</div>
<div class="h-auto d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height auto</div>
</div>

~~You can also use max-width: 100%; and max-height: 100%; utilities as needed.~~您也可以根据需要使用max-width: 100%;和max-height: 100%;实用工具。

<img src="..." class="mw-100" alt="...">

Max-height 100%

<div style="height: 100px; background-color: rgba(255,0,0,.1);">
<div class="mh-100" style="width: 100px; height: 200px; background-color: rgba(0,0,255,.1);">Max-height 100%</div>
</div>

Relative to the viewport相对于视口

~~You can also use utilities to set the width and height relative to the viewport.~~也可以使用工具设置相对于视口的宽度和高度。

<div class="min-vw-100">Min-width 100vw</div>
<div class="min-vh-100">Min-height 100vh</div>
<div class="vw-100">Width 100vw</div>
<div class="vh-100">Height 100vh</div>

Sass

Utilities API实用程序API

~~Sizing utilities are declared in our utilities API in scss/_utilities.scss. Learn how to use the utilities API.~~大小实用程序在实用程序API中以scss/_utilities.scss的形式声明。了解如何使用实用程序API。

    "width": (
property: width,
class: w,
values: (
25: 25%,
50: 50%,
75: 75%,
100: 100%,
auto: auto
)
),
"max-width": (
property: max-width,
class: mw,
values: (100: 100%)
),
"viewport-width": (
property: width,
class: vw,
values: (100: 100vw)
),
"min-viewport-width": (
property: min-width,
class: min-vw,
values: (100: 100vw)
),
"height": (
property: height,
class: h,
values: (
25: 25%,
50: 50%,
75: 75%,
100: 100%,
auto: auto
)
),
"max-height": (
property: max-height,
class: mh,
values: (100: 100%)
),
"viewport-height": (
property: height,
class: vh,
values: (100: 100vh)
),
"min-viewport-height": (
property: min-height,
class: min-vh,
values: (100: 100vh)
),