.bottom-nav {
  z-index: 99;
  display: flex;
  justify-content: space-around;
  align-items: baseline;
  position: fixed;
  bottom: 0;
  width: 100%;
  height: 45px;
  background: #F8F8F8;
  padding: 10px 0;
  box-shadow: 0px 1px 3px #aaa;
}
.bottom-nav-item {
  text-align: center;
}
.bottom-nav-item img {
  width: 30px;
}
.bottom-nav-item p {
  font-size: 12px;
  color: #999999;
}
.active-nav p {
  color: #D40000;
}
.normal-img {
  display: initial;
}
.active-img {
  display: none;
}
.active-nav .normal-img {
  display: none;
}
.active-nav .active-img {
  display: initial;
}