html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}body{line-height:1}ol,ul{list-style:none}blockquote,q{quotes:none}blockquote:before,blockquote:after,q:before,q:after{content:"";content:none}table{border-collapse:collapse;border-spacing:0}a{text-decoration:none}input[type="text"],input[type="submit"],input[type="button"]{-webkit-appearance:none}ul{padding:0;margin:0}input[type="text"],input[type="submit"],input[type="button"]{-webkit-appearance:none}
/* 全局变量 */
:root{
  /* 全局颜色 */
  --overall--color:#febc35;
}
a{
  text-decoration: none;
}
::-webkit-scrollbar {
  /*滚动条整体样式*/
  width : 10px;  /*高宽分别对应横竖滚动条的尺寸*/
  height: 10px;
  }
  ::-webkit-scrollbar-thumb {
  /*滚动条里面小方块*/
  border-radius: 10px;
  box-shadow   : inset 0 0 5px rgba(0, 0, 0, 0.2);
  background   : #535353;
  }
  ::-webkit-scrollbar-track {
  /*滚动条里面轨道*/
  box-shadow   : inset 0 0 5px rgba(225, 225, 225, 0.2);
  border-radius: 10px;
  background   : #ededed;
  }