a {
 color: #000;
 -webkit-transition: color 1s ease-in; /*safari and chrome */
 -moz-transition: color 1s ease-in; /* firefox */
 -o-transition: color 1s ease-in; /* opera */
}

a:hover { 
 color: #c00;
}

.multiple a {
 color: #000;
 background: #ccc;
 padding: 5px;
 -webkit-transition-property: color, background;
 -webkit-transition-duration: 1s, 1s;
 -webkit-transition-timing-function: linear, ease-in;
}

.multiple a:hover {
 color: #fff;
 background: #c00;
}