#mypresta_mib ul, #mypresta_mib li, #mypresta_mib a {display:block; width:100%; text-align:center;}
#mypresta_mib a {
    transition: opacity .25s ease-in-out;
   -moz-transition: opacity .25s ease-in-out;
   -webkit-transition: opacity .25s ease-in-out;
   opacity:1.0;
}
#mypresta_mib a:hover {
    opacity:0.7;
}