Bootstrap 速查表
可搜索、可打印的 Bootstrap 5.3 参考手册——栅格、间距、排版、颜色、弹性布局工具、按钮、表单以及组件。免费。
Grid & layout
12<div class="container">
Fixed-width responsive container
<div class="container-fluid">
Full-width container at every breakpoint
<div class="container-md">
100% wide until the md breakpoint
<div class="row">
Grid row, holds columns
<div class="col">
Equal-width auto column
<div class="col-6">
Spans 6 of 12 columns
<div class="col-md-4">
4 columns from the md breakpoint up
<div class="col-auto">
Column sized to its content
<div class="offset-md-2">
Push column 2 columns to the right
<div class="row g-3">
Gutter spacing between columns
<div class="row row-cols-3">
Force 3 equal columns per row
<div class="order-2">
Reorder a flex/grid column
Spacing utilities
12m-3
Margin on all sides (scale 0-5)
mt-2
Margin top
mx-auto
Auto horizontal margins to center
p-4
Padding on all sides
py-2
Vertical padding (top and bottom)
ms-3
Margin start (left in LTR, RTL-aware)
me-3
Margin end (right in LTR, RTL-aware)
ps-2
Padding start, RTL-aware
pe-2
Padding end, RTL-aware
gap-3
Gap between flex/grid items
m-n1
Negative margin
p-md-5
Responsive padding from md up
Typography
14<h1>..<h6>
Heading levels with default styling
<p class="display-1">
Large display heading (display-1..6)
<p class="lead">
Stand-out lead paragraph
fw-bold
Bold font weight
fw-semibold
Semibold font weight
fst-italic
Italic font style
text-center
Center-align text
text-start
Start-align text, RTL-aware
text-end
End-align text, RTL-aware
text-truncate
Truncate overflow with ellipsis
text-uppercase
Transform text to uppercase
fs-1
Responsive font size (fs-1..6)
lh-base
Base line height (lh-1, lh-sm, lh-lg)
font-monospace
Monospace font family
Colors & background
10text-primary
Primary text color
bg-primary
Primary background color
bg-primary-subtle
Subtle primary background tint
text-primary-emphasis
Emphasis primary text, theme-aware
text-bg-primary
Primary bg with auto-contrast text
link-primary
Colored link helper
bg-opacity-50
Apply 50% background opacity
text-body-secondary
Muted secondary body text
text-body-emphasis
High-emphasis body text
border-primary-subtle
Subtle primary border color
Flex utilities
10d-flex
Create a flex container
flex-row
Lay items in a row
flex-column
Lay items in a column
justify-content-between
Space items along the main axis
align-items-center
Center items on the cross axis
flex-wrap
Allow items to wrap
flex-grow-1
Let an item grow to fill space
flex-fill
Force equal flexible widths
align-self-end
Align a single item to the end
flex-md-row
Responsive flex direction from md
Display & position
12d-none
Hide the element
d-md-block
Show as block from the md breakpoint
position-relative
Relative positioning
position-absolute
Absolute positioning
position-fixed
Fixed positioning
position-sticky
Sticky positioning
top-0 start-0
Pin to top-left, RTL-aware
translate-middle
Center via transform translate
fixed-top
Fix element to top of viewport
sticky-top
Stick to top on scroll
z-3
Set z-index (z-0..3)
invisible
Hide but keep layout space
Sizing & borders
12w-100
Width 100% of parent
w-50
Width 50% of parent
h-100
Height 100% of parent
mw-100
Max-width 100%
vh-100
Height 100% of the viewport
border
Add a default border on all sides
border-0
Remove all borders
border-primary
Color the border
rounded
Default border-radius
rounded-pill
Fully rounded pill shape
rounded-circle
Circular border-radius
shadow-sm
Small box shadow (shadow, shadow-lg)
Buttons
9<button class="btn btn-primary">
Solid primary button
<button class="btn btn-outline-primary">
Outline button variant
<button class="btn btn-lg">
Large button (also btn-sm)
<button class="btn btn-link">
Button styled like a link
<button class="btn-close">
Generic close (×) button
<button class="btn disabled">
Disabled button state
<button class="btn active">
Active button state
<div class="d-grid"><button class="btn">
Full-width block button via d-grid
<div class="btn-group">
Group buttons together
Forms
11<input class="form-control">
Styled text input
<label class="form-label">
Form field label
<select class="form-select">
Styled select dropdown
<div class="form-check">
Checkbox/radio wrapper
<input class="form-check-input">
Styled checkbox or radio input
<div class="form-check form-switch">
Toggle switch component
<input class="form-control-lg">
Large input (also form-control-sm)
<div class="input-group">
Group inputs with add-ons
is-invalid
Invalid validation state (is-valid)
<div class="form-floating">
Floating label input
col-form-label
Label aligned for horizontal forms
Components
14<div class="card">
Flexible content card
<nav class="navbar navbar-expand-lg">
Responsive navigation bar
data-bs-toggle="modal" data-bs-target="#m"
Trigger a modal dialog
data-bs-toggle="dropdown"
Toggle a dropdown menu
data-bs-toggle="collapse"
Toggle a collapsible element
<div class="accordion">
Stacked collapsible panels
<div class="alert alert-dismissible">
Dismissible alert message
<span class="badge text-bg-primary">
Small count or label badge
<ul class="list-group">
Styled list of items
<ul class="nav nav-tabs">
Tabbed navigation
<div class="toast">
Lightweight toast notification
<div class="offcanvas">
Off-canvas sidebar panel
<div class="spinner-border">
Loading spinner indicator
<nav><ul class="pagination">
Paginated navigation links
Helpers & misc
11data-bs-theme="dark"
Enable dark color mode on a scope
<div class="ratio ratio-16x9">
Responsive aspect-ratio box
visually-hidden
Hide visually, keep for screen readers
visually-hidden-focusable
Hidden until focused (skip links)
stretched-link
Make a parent fully clickable
clearfix
Clear floated children
<div class="vstack gap-2">
Vertical stack of elements
<div class="hstack gap-2">
Horizontal stack of elements
<a class="icon-link">
Link aligned with an inline icon
<div class="progress">
Progress bar container
<nav class="breadcrumb">
Breadcrumb navigation trail
没有条目匹配“:q”。
关于 Bootstrap 速查表
这份 Bootstrap 速查表针对 Bootstrap 5.3，收录了你每天都会用到的类名：网格与布局、间距工具、排版、颜色与背景、Flex 工具、显示与定位、尺寸与边框、按钮、表单、组件和辅助工具。
Bootstrap 的效率很大程度上取决于对词汇的掌握：知道某个类存在、知道它的响应式断点写法是什么样。每一行都展示了一个类或标签片段并配有一句话说明，所以"这个工具类叫什么来着？"这个问题只需要一次搜索，而不必翻查文档。
该速查表免费提供，完全在客户端运行。用搜索框实时筛选类名，通过粘性目录在各章节间跳转，一键复制任意代码片段，也可以打印整页在搭建布局时随手查阅。
如何使用 Bootstrap 速查表
- 浏览各个章节，从网格与布局、间距工具，一直到组件和杂项辅助工具。
- 搜索 gap、rounded 或 d-flex 等工具类，即可立即筛选速查表。
- 通过粘性侧边栏跳转到 Flex 工具或表单等章节。
- 点击某个类或代码片段（或其复制图标），将其复制到你的标签中。
- 打印这份速查表，放在编辑器旁作为类名参考。
常见问题
Bootstrap 5.3。展示的工具类和组件类均与当前 5.3 版本的命名一致，包括现代 Bootstrap 项目中使用的间距、Flex 和颜色约定。
共十一个章节：网格与布局、间距工具、排版、颜色与背景、Flex 工具、显示与定位、尺寸与边框、按钮、表单、组件和辅助工具。
是的。间距章节详细说明了 margin 和 padding 类的命名模式——属性、方向、断点和尺寸比例——这是 Bootstrap 中使用频率最高的部分。
可以。点击任意代码片段或其复制图标，类名就会被复制到剪贴板，随时可粘贴到你的 HTML 中。
是的，完全免费——客户端运行、可搜索、可打印，无需登录。
热门搜索
bootstrap 速查表
bootstrap 5 类名列表
bootstrap grid 类名
bootstrap 间距工具类
bootstrap flex 工具类
bootstrap 按钮类名
bootstrap 表单类名
bootstrap 5 参考手册
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