gistfile1.css

.transition {
   -moz-transition: all 0.5s ease; /* Firefox */
     -o-transition: all 0.5s ease; /* Opera */
-webkit-transition: all 0.5s ease; /* Safari and Chrome */
    -ms-transition: all 0.5s ease; /* Internet Explorer */
        transition: all 0.5s ease;
}