文字 (Text)
文字通用類別的文檔和示例,用於控制對齊、環繞、粗細等。
文字對齊
使用文字對齊類別輕鬆地將文本重新對齊元件。對於開始、結束和中心對齊可以使用與網格系統相同之視窗寬度斷點的響應式類別。
Start aligned text on all viewport sizes.
Center aligned text on all viewport sizes.
End aligned text on all viewport sizes.
Start aligned text on viewports sized SM (small) or wider.
Start aligned text on viewports sized MD (medium) or wider.
Start aligned text on viewports sized LG (large) or wider.
Start aligned text on viewports sized XL (extra-large) or wider.
<p class="text-start">Start aligned text on all viewport sizes.</p>
<p class="text-center">Center aligned text on all viewport sizes.</p>
<p class="text-end">End aligned text on all viewport sizes.</p>
<p class="text-sm-start">Start aligned text on viewports sized SM (small) or wider.</p>
<p class="text-md-start">Start aligned text on viewports sized MD (medium) or wider.</p>
<p class="text-lg-start">Start aligned text on viewports sized LG (large) or wider.</p>
<p class="text-xl-start">Start aligned text on viewports sized XL (extra-large) or wider.</p>
Text wrap 和 overflow
使用 .text-wrap
類別來包覆文字。
<div class="badge bg-primary text-wrap" style="width: 6rem;">
This text should wrap.
</div>
可搭配 .text-nowrap
類別防止換行。
<div class="text-nowrap bd-highlight" style="width: 8rem;">
This text should overflow the parent.
</div>
文字斷行
使用 .text-break
設定 word-wrap: break-word
和 word-break: break-word
預防長文破壞元件的排版。Bootstrap 使用 word-wrap
以取代更常見的方法 overflow-wrap
來獲得更廣泛的瀏覽器支持,增加 word-break: break-word
來避免 flex 容器的問題。
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
<p class="text-break">mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm</p>
.text-break
已從我們的 RTL 編譯 CSS 中移除。
文字變換
使用文字大寫字母類別將元件中的文字內容轉大寫。
Lowercased text.
Uppercased text.
CapiTaliZed text.
<p class="text-lowercase">Lowercased text.</p>
<p class="text-uppercase">Uppercased text.</p>
<p class="text-capitalize">CapiTaliZed text.</p>
請注意 .text-capitalize
只有將第一個字母轉為大寫,而其他字母不受影響。
文字大小
快速的改變文字的 font-size
。標題類別 (例如:.h1
–.h6
) 使用了 font-size
、font-weight
和 line-height
, 但以下的通用類別 只 使用 font-size
。這些通用類別的尺寸設定也符合 HTML 的標題元素,所以當數字增加時,他們的尺寸也會跟著變小。
.fs-1 text
.fs-2 text
.fs-3 text
.fs-4 text
.fs-5 text
.fs-6 text
<p class="fs-1">.fs-1 text</p>
<p class="fs-2">.fs-2 text</p>
<p class="fs-3">.fs-3 text</p>
<p class="fs-4">.fs-4 text</p>
<p class="fs-5">.fs-5 text</p>
<p class="fs-6">.fs-6 text</p>
透過修改 $font-sizes
的 Sass map 來客製化您的 font-size
。
文字粗細和斜體
使用這些通用類別來快速地改變文字內容的 font-weight
或 font-style
。font-style
通用類別的縮寫為 .fst-*
, font-weight
通用類別的縮寫為 .fw-*
。
Bold text.
Bolder weight text (relative to the parent element).
Normal weight text.
Light weight text.
Lighter weight text (relative to the parent element).
Italic text.
Text with normal font style
<p class="fw-bold">Bold text.</p>
<p class="fw-bolder">Bolder weight text (relative to the parent element).</p>
<p class="fw-normal">Normal weight text.</p>
<p class="fw-light">Light weight text.</p>
<p class="fw-lighter">Lighter weight text (relative to the parent element).</p>
<p class="fst-italic">Italic text.</p>
<p class="fst-normal">Text with normal font style</p>
行高
使用 .lh-*
通用類別來改變行高。
This is a long paragraph written to show how the line-height of an element is affected by our utilities. Classes are applied to the element itself or sometimes the parent element. These classes can be customized as needed with our utility API.
This is a long paragraph written to show how the line-height of an element is affected by our utilities. Classes are applied to the element itself or sometimes the parent element. These classes can be customized as needed with our utility API.
This is a long paragraph written to show how the line-height of an element is affected by our utilities. Classes are applied to the element itself or sometimes the parent element. These classes can be customized as needed with our utility API.
This is a long paragraph written to show how the line-height of an element is affected by our utilities. Classes are applied to the element itself or sometimes the parent element. These classes can be customized as needed with our utility API.
<p class="lh-1">This is a long paragraph written to show how the line-height of an element is affected by our utilities. Classes are applied to the element itself or sometimes the parent element. These classes can be customized as needed with our utility API.</p>
<p class="lh-sm">This is a long paragraph written to show how the line-height of an element is affected by our utilities. Classes are applied to the element itself or sometimes the parent element. These classes can be customized as needed with our utility API.</p>
<p class="lh-base">This is a long paragraph written to show how the line-height of an element is affected by our utilities. Classes are applied to the element itself or sometimes the parent element. These classes can be customized as needed with our utility API.</p>
<p class="lh-lg">This is a long paragraph written to show how the line-height of an element is affected by our utilities. Classes are applied to the element itself or sometimes the parent element. These classes can be customized as needed with our utility API.</p>
Monospace
選擇使用 .font-monospace
來更換為 monospace 字體堆疊。
This is in monospace
<p class="font-monospace">This is in monospace</p>
重置色彩
使用 .text-reset
來重置一個文字或連結色彩,以便它們繼承父層的顏色。
Muted text with a reset link.
<p class="text-muted">
Muted text with a <a href="#" class="text-reset">reset link</a>.
</p>
文字裝飾
使用文字裝飾類別來裝飾元件中的文字。
This text has a line underneath it.
This text has a line going through it.
This link has its text decoration removed<p class="text-decoration-underline">This text has a line underneath it.</p>
<p class="text-decoration-line-through">This text has a line going through it.</p>
<a href="#" class="text-decoration-none">This link has its text decoration removed</a>
Sass
Variables
// stylelint-disable value-keyword-case
$font-family-sans-serif: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
$font-family-monospace: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
// stylelint-enable value-keyword-case
$font-family-base: var(--#{$variable-prefix}font-sans-serif);
$font-family-code: var(--#{$variable-prefix}font-monospace);
// $font-size-root affects the value of `rem`, which is used for as well font sizes, paddings, and margins
// $font-size-base affects the font size of the body text
$font-size-root: null;
$font-size-base: 1rem; // Assumes the browser default, typically `16px`
$font-size-sm: $font-size-base * .875;
$font-size-lg: $font-size-base * 1.25;
$font-weight-lighter: lighter;
$font-weight-light: 300;
$font-weight-normal: 400;
$font-weight-bold: 700;
$font-weight-bolder: bolder;
$font-weight-base: $font-weight-normal;
$line-height-base: 1.5;
$line-height-sm: 1.25;
$line-height-lg: 2;
$h1-font-size: $font-size-base * 2.5;
$h2-font-size: $font-size-base * 2;
$h3-font-size: $font-size-base * 1.75;
$h4-font-size: $font-size-base * 1.5;
$h5-font-size: $font-size-base * 1.25;
$h6-font-size: $font-size-base;
Maps
Font-size 通用類別是從此 map 與 utilities API 結合生成的。
$font-sizes: (
1: $h1-font-size,
2: $h2-font-size,
3: $h3-font-size,
4: $h4-font-size,
5: $h5-font-size,
6: $h6-font-size
);
Utilities API
Font 和 text 通用類別在 scss/_utilities.scss
中的 utilities API 中宣告。了解如何使用 utilities API。
"font-family": (
property: font-family,
class: font,
values: (monospace: var(--#{$variable-prefix}font-monospace))
),
"font-size": (
rfs: true,
property: font-size,
class: fs,
values: $font-sizes
),
"font-style": (
property: font-style,
class: fst,
values: italic normal
),
"font-weight": (
property: font-weight,
class: fw,
values: (
light: $font-weight-light,
lighter: $font-weight-lighter,
normal: $font-weight-normal,
bold: $font-weight-bold,
bolder: $font-weight-bolder
)
),
"line-height": (
property: line-height,
class: lh,
values: (
1: 1,
sm: $line-height-sm,
base: $line-height-base,
lg: $line-height-lg,
)
),
"text-align": (
responsive: true,
property: text-align,
class: text,
values: (
start: left,
end: right,
center: center,
)
),
"text-decoration": (
property: text-decoration,
values: none underline line-through
),
"text-transform": (
property: text-transform,
class: text,
values: lowercase uppercase capitalize
),
"white-space": (
property: white-space,
class: text,
values: (
wrap: normal,
nowrap: nowrap,
)
),
"word-wrap": (
property: word-wrap word-break,
class: text,
values: (break: break-word),
rtl: false
),