.sidebar {
  width: 60px;
  height: 132px;
  background-color: #ffffff;
  box-shadow: 0px 2px 20px 0px rgba(3, 3, 3, 0.12);
  border-radius: 4px;
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
}
.sidebar .customer {
  width: 60px;
  height: 61px;
  position: relative;
  padding-top: 16px;
}
.sidebar .customer i {
  display: block;
  background: url("../img/customer.png") no-repeat;
  width: 24px;
  height: 22px;
  margin: 0 auto 5px;
}

.sidebar b {
  font-size: 12px;
  color: #b9b9b9;
  text-align: center;
  display: block;
  font-weight: normal;
}
.sidebar .customer:hover .sidebar-hover {
  display: block;
}
.sidebar .customer:hover b {
  color: #53dedc;
}
.sidebar .customer:hover i {
  background: url("../img/customerHover.png") no-repeat;
}
.sidebar .customer .sidebar-hover {
  width: 120px;
  background: #ffffff;
  box-shadow: 0px 0px 10px 1px rgba(228, 228, 255, 0.68);
  border-radius: 16px 16px 16px 16px;
  border: 1px solid rgba(0, 0, 0, 0);
  position: absolute;
  right: 75px;
  top: 0;
  display: none;
}
.sidebar .customer .sidebar-hover em {
  width: 0;
  height: 0;
  border-left: 13px solid #fff;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  position: absolute;
  right: -14px;
  top: 24px;
}
.sidebar .customer .sidebar-hover span {
  font-size: 12px;
  color: #666;
  display: block;
  text-align: center;
  margin: 14px 0 5px;
}
.sidebar .customer .sidebar-hover img {
  width: 100px;
  height: 100px;
  display: block;
  margin: 0 auto 10px;
}
.sidebar .down {
  width: 60px;
  position: relative;
}
.sidebar .down i {
  display: block;
  background: url("../img/down.png") no-repeat;
  width: 20px;
  height: 22px;
  margin: 16px auto 5px;
}
.sidebar .down:hover i {
  background: url("../img/downHover.png") no-repeat;
}
.sidebar .down:hover b {
  color: #53dedc;
}