Demo Page

/* Basic test case: */

body{ color:blue; }

@keyframes slc{ 
    50%{ color:red; } 
}
@-webkit-keyframes slc{ 
    50%{ color:red;; } 
}


/* Custom Selection Styles */
::selection{ background:#EEE; animation:0.4s slc infinite; }
::-moz-selection{ background:#EEE; animation:0.4s slc infinite;}
::-webkit-selection{ background:#EEE; -webkit-animation:0.4s slc infinite; }