/*!
 *  build: MAIL 
 *  copyright: neverdown.cc 
 *  time: 2025-12-17 09:17:41
 */.rulers .ruler{position:absolute;white-space:nowrap;overflow:hidden;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.rulers .ruler p{font-size:12px;color:#707070;pointer-events:none}.rulers .ruler-vertical{height:16px;line-height:16px;top:-18px}.rulers .ruler-vertical p{display:inline-block;height:100%;margin:0;border-left:1px solid #707070;box-sizing:border-box;vertical-align:bottom;text-align:left;padding-left:4px;line-height:10px}.rulers .ruler-vertical p:nth-of-type(2n){height:30%}.rulers .ruler-horizontal{width:16px;line-height:16px;left:-18px}.rulers .ruler-horizontal p{display:block;float:right;width:100%;margin:0;border-top:1px solid #707070;box-sizing:border-box;line-height:10px;text-align:left;padding-top:3px}.rulers .ruler-horizontal p span{line-height:10px;-ms-writing-mode:tb-rl;writing-mode:vertical-rl;vertical-align:top}.rulers .ruler-horizontal p:nth-of-type(2n){width:30%}