.ss-footer {
  position: fixed;
  width: 100%;
  bottom: 0;
  left: 0;
  z-index: 20;
  height: 46px;
  box-shadow: 0 0 10px #dfdfdf;
  background: #fff;
}

.ss-footer .homeBut {
  display: block;
  overflow: hidden;
}

.ss-footer .homeBut li {
  width: 20%;
  text-align: center;
  float: left;
}

.ss-footer .homeBut li a {
  display: block;
  padding-top: 7.5px;
  font-size: 10px;
  color: #666;
}

.ss-footer .homeBut li a .homeIcon {
  display: block;
  margin: 0 auto;
  background: url("https://m.sinosig.com/images/index2018/footIcon.jpg") no-repeat;
  background-size: 90px 30px;
  background-position-y: 0;
  width: 18px;
  height: 15px;
  transition: all 0.3s;
}

.ss-footer .homeBut li a .homeIcon.home {
  background-position-x: 0;
}

.ss-footer .homeBut li a .homeIcon.pro {
  background-position-x: -18px;
}

.ss-footer .homeBut li a .homeIcon.slip {
  background-position-x: -36px;
}

.ss-footer .homeBut li a .homeIcon.shop {
  background-position-x: -54px;
}

.ss-footer .homeBut li a .homeIcon.user {
  background-position-x: -72px;
}

.ss-footer .homeBut li a.on {
  color: #fc5b13;
}

.ss-footer .homeBut li a.on .homeIcon {
  background-position-y: -15px;
}

.ss-footer .homeBut li a .home-word {
  display: block;
  padding: 3px 0;
}