.fixed-nav {
  position: fixed;
  right: 0;
  bottom: 100px;
  width: 64px;
  padding-bottom: 5px;
  z-index: 9999999;
  border-radius: 5px;
  background: #fff;
  border: 1px solid #eee;
}
.fixed-nav li {
  width: 100%;
  padding: 10px 0 15px;
  cursor: pointer;
  background: #fff;
}
.fixed-nav li:hover {
  background: #2979e8;
  color: #eee;
}
.fixed-nav li img {
  width: 24px;
  margin-bottom: 3px;
}
.fixed-nav li.first {
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;
}
.fixed-nav li.back-top {
  border-bottom-left-radius: 5px;
  border-bottom-right-radius: 5px;
  border: 1px solid #eee;
  border-top: 0;
  margin: -1px;
  left: 0;
  top: auto;
}