*{ margin: 0;padding: 0;}
.nav {  border-top: 1px solid #E3E3E3; background: #FFFFFF;  padding: 0px 0 5px 0;width: 100%;position: fixed;left: 0;bottom: 0;  }
.nav ul {  height: 0;  }
.nav ul li {  float: left;  width: 25%;  text-align: center;  list-style-type: none;  margin: 0;  padding: 0;  }
.nav ul li span {  display: block;  color: #BBBBBB;  font-size: 1rem;  margin-top: 1vh;  line-height: 8px;  }
a {  text-decoration: none;  }
a:hover{  text-decoration: none;  }