#modalContainer {
	background-color:rgba(0, 0, 0, 0.3);
	position:absolute;
	width:100%;
	height:100%;
	top:0px;
	left:0px;
	z-index:10000;
	/*background-image:url(tp.png); */ 
}

#alertBox {
	position:relative;
	width:300px;
	min-height:140px;
	margin-top:100px;
	border:1px solid #666;
	background-color:#fff;
	background-repeat:no-repeat;
	background-position:20px 30px;
}

#modalContainer > #alertBox {
	position:fixed;
}

#alertBox h1 {
	margin:0;
	font:bold 0.9em verdana,arial;
	background-color:#4a868b;
	color:#FFF;
	border-bottom:1px solid #000;
	padding:2px 0 2px 5px;
}

#alertBox p {
	//font:0.7em verdana,arial;
	height: auto;
	padding-left: 5px;
	margin: auto 19px;
	word-wrap: break-word;
}

#alertBox #closeBtn, #alertBox #okBtn, #alertBox #cancelBtn {
	display:block;
	position:relative;
	margin:10px 2% 10px 24px;
	float: left;
	padding:7px;
	border:0 none;
	width:70px;
	font:0.7em verdana,arial;
	text-transform:uppercase;
	text-align:center;
	color:#FFF;
	background-color:#4a868b;
	border-radius: 3px;
	text-decoration:none;
}

unrelated styles 

#mContainer {
	position:relative;
	width:600px;
	margin:auto;
	padding:5px;
	border-top:2px solid #000;
	border-bottom:2px solid #000;
	font:0.7em verdana,arial;
}

h1,h2 {
	margin:0;
	padding:4px;
	font:bold 1.5em verdana;
}

code {
	font-size:1.2em;
	color:#069;
}

#credits {
	position:relative;
	margin:25px auto 0px auto;
	width:350px; 
	font:0.7em verdana;
	border-top:1px solid #000;
	border-bottom:1px solid #000;
	height:90px;
	padding-top:4px;
}

#credits img {
	float:left;
	margin:5px 10px 5px 0px;
	border:1px solid #000000;
	width:80px;
	height:79px;
}

.important {
	background-color:#F5FCC8;
	padding:2px;
}

code span {
	color:green;
}