directory search
Getting started Accessibility(无障碍) Browsers and devices(浏览器和设备) Build tools(构建工具) Contents(内容) Download(下载) JavaScript Theming Bootstrap(主题Bootstrap) Webpack Components: Alerts Alerts(警报) Components: Badges Badges(徽章) Components: Breadcrumb Breadcrumb Components: Button group Button group(按钮组) Components: Buttons Buttons(按钮) Components: Cards Components: Carousel Cards(卡) Carousel(圆盘传送带) Components: Collapse Collapse(折叠) Components: Dropdowns Dropdowns(下拉菜单) Components: Forms Forms(表单) Components: Input group Input group(输入群组) Components: Input group Jumbotron(广告大屏幕) Components: List group List group(列表组) Components: Modal Modal(互动视窗) Components: Navbar Navbar(导航栏) Components: Navs Navs(导航栏) Components: Pagination Pagination(分页) Components: Popovers Popovers(弹出框) Components: Progress Progress(进度条) Components: Scrollspy Scrollspy(滚动监听) Components: Tooltips Tooltips(提示工具) Content Code(代码) Figures(图片区) Images(图片) Reboot(重置) Tables(表格) Typography(排版) Layout Grid(网格) Layout(布局) Media object(多媒体对象) Utilities for layout(排版通用类别) Migration Migrating to v4(迁移到v4) Utilities Borders(边框) Clearfix(清除浮动) Close icon(关闭图标) Colors(颜色) Display property(显示属性) Embeds(内嵌) Flex(弹性) Float(浮动) Image replacement(图像替换) Position(位置) Screenreaders(荧幕阅读器) Sizing(尺寸) Spacing(间隔) Text(文本) Vertical alignment(垂直对齐) Visibility(能见度)
characters

使用边界实用程序快速设置元素的边框和边框半径。非常适合图片,按钮或任何其他元素。

边界

将元素添加到元素以删除所有边框或边框。

<span class="border"></span><span class="border-0"></span><span class="border-top-0"></span><span class="border-right-0"></span><span class="border-bottom-0"></span><span class="border-left-0"></span>

边框颜色

使用基于主题颜色的实用程序更改边框颜色。

<span class="border border-primary"></span><span class="border border-secondary"></span><span class="border border-success"></span><span class="border border-danger"></span><span class="border border-warning"></span><span class="border border-info"></span><span class="border border-light"></span><span class="border border-dark"></span><span class="border border-white"></span>

边界半径

将类添加到元素中,以便轻松使元素的角变圆。

<img src="..." alt="..." class="rounded"><img src="..." alt="..." class="rounded-top"><img src="..." alt="..." class="rounded-right"><img src="..." alt="..." class="rounded-bottom"><img src="..." alt="..." class="rounded-left"><img src="..." alt="..." class="rounded-circle"><img src="..." alt="..." class="rounded-0">
Previous article: Next article: