.box-brand a { margin:0 auto; display:block; } .box-brand img { margin:0 auto; display:block; transition: opacity 300ms ease-in-out; -moz-transition: opacity 300ms ease-in-out; -webkit-transition: opacity 300ms ease-in-out; -o-transition: opacity 300ms ease-in-out; } .box-brand img:hover { opacity:0.75; filter:alpha(opacity=75); }