.fl {
  float: left;
}
.fr {
  float: right;
}
.clrfix {
  zoom: 1;
}
.clrfix:after {
  content: "";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
  overflow: hidden;
}

ul li {
    margin:0 10px 10px 0;
}

.button-doc-4 {
  padding: 10px 0;
}