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Background
I have used bootstrap4 many times recently when doing some small learning projects, so I will organize the bootstrap here for future review. . (Free video course recommendation: bootstrap tutorial)
bootstrap4 installation
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Container and grid system
container container- fluid //Container class The former has a fixed width and the latter has a 100% width
Text layout
display //标题类 1-4 small //小文本 <abbr> //文本底部下面一条虚线边框
Color
text-muted 柔和 text-primary 重要 text-success 成功 text-info 提示 text-warning 警告 text-danger 危险 text-secondary 副标题 text-dark 深灰色文字 text-light 浅灰色 text-white 白色
Form
table //默认样式 table-striped //条纹表格 table-bordered //边框表格 table-hover //鼠标悬停 table-dark //黑色背景表格 table-responsive //响应式表格
Picture
rounded //圆角效果 rounded-circle //椭圆效果 img-thumbnail //图片缩略图效果 img-fluid //图片响应式效果 超大屏幕 jumbotron // 屏幕 jumbotron-fluid //没有圆角的全屏幕
Information prompt box
alert-success //成功提示信息 alert-dismissable class="close" data-dismiss="alert" //关闭提示框
Button
btn-primary //主要按钮 btn-secondary //次要按钮 btn-success //成功按钮 btn-info //信息按钮 btn-danger //危险 btn-outline-primary //按钮边框 btn-sm btn-lg //小大号按钮 btn-block //块级按钮 active //可用 disabled //禁用
Button group
btn-group //按钮组 btn-group-lg|sm|xs 控制按钮组大小 btn-group-vertical 垂直按钮组
Progress bar
progress //添加一个p progress-bar //在上面的p中添加一个progress-bar的p
Paging
pagination //ul元素上添加 page-item //在li元素上添加page-item
List group
list-group //列表组 list-group-item //列表li list-group-item-action
Card
card、card-header、card-body、card-footer card-img-top //图片 card-body、card-title、card-text //图片卡片 card-img-overlay//设置图片为背景
Drop-down menu
dropdown //下拉菜单默认 button设置dropdown-toggle data-toggle=“dropdown” //下拉button dropdown-menu //下拉菜单 a设置样式dropdown-item
Navigation bar
navbar、navbar-expand-sm、bg-light ul:navbar-nav li:nav-item
Form
form-group label for email input class form-control
Modal box
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Prompt box
data-toggle="tooltip" //创建提示框 title="我是提示内容!" //提示内容 data-placement="top" //指定提示框位置rrree
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