火狐删除各种虚线框

1. 删除按钮虚线框

   <!-- 火狐浏览器，去除按钮虚线框 -- > 
   button::-moz-focus-inner,
   input[type='reset']::-moz-focus-inner,
   input[type='button']::-moz-focus-inner,
   input[type='submit']::-moz-focus-inner,
   input[type='file'] > input[type='button']::-moz-focus-inner {
     border: none;
   }

2. 删除 range 虚线框

   input[type='range']:focus {
     outline: none;
   }
   input[type='range']::-moz-focus-outer {
     border: none;
   }