.navbar2 {
    background: #000000;
    height:180px;
    color: #ffffff;
}
img {
float: center;
margin: 15px;
-webkit-transition: margin 0.5s ease-out;
-moz-transition: margin 0.5s ease-out;
-ms-transition: margin 0.5s ease-out;
transition: margin 0.5s ease-out;
}
.navbar2 .ex1 img:hover {
cursor: pointer;
margin-top: 2px;
}