/*
*@author:jtballs
*@Date:2021-04-21
*/
#menu {
  background-color: #f5f5f5;
}

.sub-menu,
.menu-item {
  line-height: 30px;
  text-indent: 10px;
  cursor: pointer;
}

.sub-menu {
  padding-top: 30px;
  position: relative;
  transition: all 0.3s;
  padding-left: 15px;
  overflow-y: hidden;
}

.menu-item:hover {
  background-color: gainsboro;
}

.sub-title {
  color: #000;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  cursor: pointer;
}

.sub-title:after {
  content: '>';
  transition: all 0.3s;
  transform-origin: center;
  position: absolute;
  right: 10px;
  margin-left: 15px;
  width: 30px;
  height: 30px;
  line-height: 30px;
  transform: rotate(90deg);
}

.sub-title-arrow-down:after {
  transform: rotate(90deg);
}

.sub-title-arrow-right:after {
  transform: rotate(0);
}