body,h1,h2,h3,h4,h5,h6,hr,p,blockquote,dl,dt,dd,ul,ol,li,pre,form,fieldset,legend,button,input,textarea,th,td{margin:0;padding:0}body,button,input,select,textarea{font:12px/1.5 'Avenir', Helvetica, Arial, sans-serif;color: #2c3e50}h1,h2,h3,h4,h5,h6{font-size:100%}address,cite,dfn,var,em,i,u{font-style:normal}ol,ul{list-style:none}a{text-decoration:none}a:hover{text-decoration:underline}img{border:none;vertical-align:middle}:focus{outline:0}button,input,select,textarea{font-size:100%}table{border-collapse:collapse;border-spacing:0}
/* 滚动条样式 */

::-webkit-scrollbar {
  width: 16px;
  height: 16px;
}

::-webkit-scrollbar-track {
  background-color: rgba(0, 0, 0, 0);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb {
  border-radius: 3px;
  background: #c5c2c8;
  border: 1px solid #c5c2c8;
}


::-webkit-scrollbar-thumb:vertical:hover {
  background: #a9a3af;
  border: 1px solid #c5c2c8;
}
.clearfix{overflow: hidden;}
.left {
  float: left;
}

.right {
  float: right;
}