Bootstrap 标签样式，代码如下：

Bootstrap 实例 - 标签的变体 .label .label[href]:hover,.label[href]:focus .label:empty .label-default .label-default[href]:hover,.label-default[href]:focus .label-primary .label-primary[href]:hover,.label-primary[href]:focus .label-success .label-success[href]:hover,.label-success[href]:focus .label-info .label-info[href]:hover,.label-info[href]:focus .label-warning .label-warning[href]:hover,.label-warning[href]:focus .label-danger .label-danger[href]:hover,.label-danger[href]:focus默认标签主要标签成功标签信息标签警告标签危险标签