.topimg {
	position: relative;
	width: 700px;
	margin: auto;
}

.topimg img {
	position: absolute;
	width: 700px;
	margin: auto;
}


.topimg .img_back {
	position: relative;
	top: 0;
	left: 0;
}

.topimg .img_logo {
	position: absolute;
	width: 200px;
	bottom: 0;
	right: 0;
}

.button {
	position: relative;
}

.button p {
	position: absolute;
	top: 50%;
	left: 60%;
	transform: translate(-50%,-50%);
	padding:0;
	margin:0;
}

.title {
	position: relative;
}

.title p {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%,-50%);
	padding:0;
	margin:0;
}

.srccode {
	position: relative;
}

.srccode pre {
	background-color: black;
	border: solid 1px #320099;
	font-family: "Terminal";
	font-size: 80%;
	color: white;
}