.main {
  width: 1400px;
  height: 2000px;
  background-color: #eee;
  margin: 0 auto;
}

.sidebar {
  position: fixed;
  right: 150px;
  top: 53%;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
}
.sidebar-item {
  display: block;
  width: 80px;
  height: 80px;
  background: #ffffff;
  -webkit-box-shadow: 0px 0px 6px 2px rgb(223 230 245 / 58%);
  box-shadow: 0px 0px 6px 2px rgb(223 230 245 / 58%);
  border-radius: 4px;
  border: 1px solid transparent;
  font-size: 14px;
  line-height: 21px;
  color: #000000;
  text-align: center;
  margin-bottom: 10px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
.sidebar-item:hover {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(237, 112, 38, 0.5);
}
.sidebar-item-img {
  position: relative;
  height: 52px;
}
.sidebar-item-img .img {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  width: 36px;
  height: 36px;
}