*{
  padding: 0rem;
  margin: 0rem;
}
.nav_list{
  width: 100%;
  text-align: center;
}

.nav_list a{
  display: inline-block;
  height: .5rem;
  width: 1.5rem;
  color: white;
  /*border: .0125rem solid red;
  box-sizing: border-box;*/
  line-height: .5rem;
}
.nav_list ul{
  list-style: none;
}

#list{
  width: 100%;
  height: 100%;
  display: inline-block;
  margin: 0rem;
  padding: 0rem;
  vertical-align: bottom;
  background-color: #fff;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}
#list>li>a{
  height: 100%;
  font-size: 16px;
  color: #333;
  line-height: 1.25rem;
  text-align: center;
  white-space: nowrap;
}
#list>li>a:before {
  content: '';
  width: 100%;
  height: .05rem;
  background-color: #1a75bb;
  position: absolute;
  left: 0;
  bottom: 0;
  transform: scaleX(0);
  transition: .3s;
}
#list>li>a:hover:before{
  transform: scaleX(1);
}
#list>li{
  position: relative;
  min-width: 1.5rem;
  height: 100%;
  float: left;
}

#list>li>ul>li{
  overflow: hidden;
  height: 0;
  -webkit-transition: height 200ms ease-in;
  -moz-transition: height 200ms ease-in;
  -o-transition: height 200ms ease-in;
  transition: height 200ms ease-in;
}

#list>li:hover ul li{
  height: .625rem;
}
#list>li>ul{
  position: absolute;
  z-index: 999;
}
#list>li>ul a{
  height: .625rem;
  line-height: .625rem;
  color: #fff;
  font-size: .175rem;
  background-color: #1a75bb;
}

.nav_list li ul a:hover {
  background-color: #4c99e4 !important;
}