transition: all 0.4s linear;
	-webkit-transition: all 0.4s linear;
	-moz-transition: all 0.4s linear;
	-o-transition: all 0.4s linear;
	-ms-transition: all 0.4s linear;

<script type="text/javascript">
$(document).ready(function() {
    gonder();
    var int=self.setInterval("gonder()",2000);
});
 
function gonder(){
    $.ajax({
        type:'POST',
        url:'degerler.php',
        success: function (msg) {
            $("#sonuc").html(msg);
            $("#sonuc").css("color","red");
            setTimeout(function(){
                $("#sonuc").css("color","#000");
             }, 1000);
        }
    });
}
</script>