Set fonts smaller than 12px

1. Mobile terminal

.font{
   // 10px / 12px = 0.83
   transform: scale(0.83);
}

2. PC side

To avoid browsers that do not support CSS3, we can also change the font back to 12px by downgrading; finally compatible with IE: *font-size:10px;

.font{
   font-size: 12px;
   transform: scale(0.83,0.83) ;
   *font-size: 10px;
}