BOUNCE!! BOUNCE!!`

user-style.css

@namespace url(http://www.w3.org/1999/xhtml);

a:hover, input:hover, textarea:hover
a:focus, input:focus, textarea:focus {
   -moz-animation-duration: 0.2s;
   -moz-animation-iteration-count: infinite;
   -moz-animation-name: bounceszz;
   -moz-animation-direction: alternate;
}

@-moz-keyframes bounceszz {
   from { -moz-transform: scale(1); }
   to { -moz-transform: scale(1.1); }
}