tronnet.net/style.css

.std-text {
	font-family: monospace;
	color: white;
	margin: 20px 0px 20px 0px;
}
.btn-group button {
	background-color: #00ff00;
	border: 1px solid #00ff00;
	color: black;
	padding: 10px 24px;
	margin: 0px 20px 0px 20px;
	cursor: pointer;
	float: left;
}
.btn-group button:not(:last-child) {
	border-right: none;
}
.btn-group:after {
	content: "";
	clear: both;
	display: table;
}
.btn-group button:hover {
	background-color: #00AA00;
	border: #00AA00;
}

.center-div {
	margin-left: auto;
	margin-right: auto;
}