#clients {
  display: block;
  margin-left: auto;
  margin-right: auto;
  background:#fff; padding:20px 0; 
}

#clients .clients-wrap {
  display: block;
  width: 100%;
  margin: 0 auto;
  overflow: hidden;
}

#clients .clients-wrap ul {
  display: block;
  list-style: none;
  position: relative;
  margin-left: auto;
  margin-right: auto;
}

#clients .clients-wrap ul li {
  display: block;
  float: left;
  position: relative;
  width: 180px;
  height: 90px;
  line-height: 90px;
  text-align: center;
}
#clients .clients-wrap ul li img {
  vertical-align: middle;
  max-width: 100%;
  max-height: 100%;
  -webkit-transition: 0 linear left;
  -moz-transition: 0 linear left;
  transition: 0 linear left;
  -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=65)";
  filter: alpha(opacity=45); 
  opacity: 0.45;
   -webkit-filter: grayscale(100%);
  filter: grayscale(100%); 
}
#clients .clients-wrap ul li img:hover {
  -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
  filter: alpha(opacity=100); 
  opacity: 1.0;
  -webkit-filter: grayscale(0%);
  filter: grayscale(0%);  
}