Bootstrap 4 has some contextual classes that can be used to provide "meaning through colors". The classes for text colors are:.text-muted,.text-primary,.text-success,.text-info,.text-warning,.text-danger,.text-secondary,.text-white,.text-dark,.text-body(default body color/often black) an...
Bootstrap4 支持以下表单控件: input textarea checkbox radio select 一、Bootstrap Input Bootstrap 支持所有的 HTML5 输入类型: text, password, datetime, datetime-local, date, month, time, week, number, email, url, search, tel, 以及 color。 注意:: 如果input 的 type 属性未正确声明,输入框...
后台实用程序没有设置 color,因此在某些情况下您需要使用.text-*实用程序。 打开getbootstrap.com上的示例 代码语言:javascript 复制 .bg-primary .bg-secondary .bg-success .bg-danger .bg-warning .bg-info
h6 headingsecondary text Try it Yourself » Bootstrap 4 will style the HTMLelement with a yellow background color and some padding: Bootstrap 4 will style the HTMLelement with a dotted border bottom: Example TheWHOwas founded in 1948....
tagstext] …… jq代码 var labelindex = $(".tags>a").length; var colorList = ["#9dc6eb", "#f8c471", "#b9a3ef", "#fdb1ca", "#9dc6eb", "#f8c471", "#b9a3ef", "#fdb1ca"]; for (var i = 0; i < labelindex; i++) { var bgColor = getColorByRandom(colorList...
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Similar to the contextual text color classes, easily set the background of an element to any contextual class. Anchor components will darken on hover, just like the text classes. Background utilities do not set color, so in some cases you’ll want to use .text-* utilities..bg-primary ....
Using color to add meaning only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (e.g. the visible text), or is included through alterna...
列 4 .show显示 .hidden隐藏 .sr-only 隐藏 .sr-only-focusable 隐藏,获取焦点时显示 .text-hide 将页面元素所包含的文本内容替换为背景图 image.png 关闭图标 class=close x关闭 image.png 下拉框按钮
参数 Bootstrap4 二、Bootstrap全局CSS样式 1、CSS Reset *{box-sizing:border-box;} box-sizing:content-box;/默认值/=margin+border+padding+width box-sizing:border-box;/推荐使用/=margin+width 2、按钮 .btn{padding: ;border: ;} .btn-default{color: ;background: ;border-color: ;} （1）五种...