thumbnail.

.clear img{
width:55px;
height:55px;
padding:0px;
background:transparent;
float: left;
border: 1px solid #393a39;
margin:5px 5px 0px 0px;
  -webkit-filter: grayscale(30%);
  -webkit-transition: all 1s ease;
     -moz-transition: all 1s ease;
       -o-transition: all 1s ease;
      -ms-transition: all 1s ease;
          transition: all 1s ease;
}

.clear img:hover{
width:55px;
height:55px;
padding:0px;
background:transparent;
float: left;
margin:5px 5px 0px 0px;
  border: 1px solid #393a39;
  border-radius: 50%;
}