css类名规范BEM用法

1. 块__元素–修饰符
   page__button–primary
2. 每个部分内部使用-连接
   page-header__button–primary
3. 多个修饰符
   page-header__button–primary-light-active
4. 没有块
   circle-button–primary
5. 组合使用

    <div class="page">
       <div class="page-header">
         <button class="page-header__button--sure"></button>
         <button class="page-header__button--cancel"></button>
       </div>
       <div class="page-content">
   
       </div>
       <div class="page-footer"></div>
     </div>
   

标签：__,BEM,button,修饰符,primary,header,类名,page,css
来源： https://blog.csdn.net/qq_36647210/article/details/116310402