body{font-family:"Trebuchet MS"; font-size:13px;color:#666;}
div#central{width:550px;text-align:left;padding:10px;border:1px solid #999;}
span {display:block;clear:both;margin-top:25px;color:#333;padding:5px;background-color:#DEDEDE;}

label, input {margin:5px 2px 5px 0px;}
input {}
label.datos {width:50px;display:block;float:left;}