.img-mtr-grale:hover{
  color: #424242; 
  -webkit-transition: all .3s ease-in;
  -moz-transition: all .3s ease-in;
  -ms-transition: all .3s ease-in;
  -o-transition: all .3s ease-in;
  transition: all .3s ease-in;
  opacity: 1;
  transform: scale(1.3);
  -ms-transform: scale(1.3); /* IE 9 */
  -webkit-transform: scale(1.3); /* Safari and Chrome */
}