.y{color:#FFFF00;}
.img_label{text-align:center;font-style:italic;width:600px;margin:5px auto;font-size:13px;font-weight:normal;}
ol{margin-left:20px;}
ol li{font-size:25px;font-weight:bold;}
ul li{list-style-type:disc;text-align:left;margin:10px 0px;font-size:13px;font-weight:normal;}
ul li ul li{list-style-type:decimal;}
ul li ul li ul li,ul.none li{list-style-type:none;}
ul li ul li ul li ul li,ul.square li{list-style-type:square;}
.cen{text-align:center;}
/* Fullscreen */
html:-moz-full-screen {
    background: red;
}

html:-webkit-full-screen {
    background: red;
}

html:fullscreen {
    background: red;