style.css

body {
	margin: 0;
	padding: 0;
	font: 100%/1 'Lato', Arial, sans-serif;
	color: #333;
	background: #fff;
}
.button {
	background-color:#f5f5f5;
	border:1px solid #dcdcdc;
	color:#666;
	cursor:pointer;
	display:inline-block;
	vertical-align:middle;
	font-size:13px;
	font-weight: bold;
	font-family: 'Lato', Arial, sans-serif;
	text-transform: uppercase;
	height:27px;
	line-height:27px;
	min-width:54px;
	padding:0 8px;
	text-align:center;
	text-decoration:none;
	border-radius:2px;
	background:linear-gradient(top,#f5f5f5,#f1f1f1);
}

.trigger, #output {
	padding: 1em;
	margin: 0;
}

/*= Confirm Box */

#confirm-wrapper {
	width: 100%;
	height: 100% !important;
	position: fixed;
	top: 0;
	left: 0;
	z-index: 1000000;
	background: rgba(0, 0, 0, 0.6);
	display: none;
	transition: opacity 1s ease-in;
}

#confirm-box {
	width: 332px;
    background: #fff;
    min-height: 200px;
    position: absolute;
    top: 50%;
    left: 50%;
    padding: 2%;
    margin: -100px 0 0 -150px;
}

#confirm-buttons {
	position: absolute;
	width: 100%;
	text-align: center;
	bottom: 0;
	left: 0;
	padding-bottom: 1em;
}

#confirm-buttons button {
	display: inline-block;
	background: transparent;
	color: #000;
	font-size: 1em;
	font-family: 'Lato', Arial, sans-serif;
	font-weight: bold;
	cursor: pointer;
	text-transform: uppercase;
	border: 2px solid;
	margin: 0 0.5em;
	padding: 0.6em 0;
	width: 120px;
}

#confirm-header {
	text-align: center;
	font-size: 1em;
	font-weight: bold;
	text-transform: uppercase;
	margin: 2.5em 0 1.5em 0;
}

#confirm-header:after {
	content: ' ';
	display: block;
	width: 1em;
	border-top: 1px solid;
	margin: 0.4em auto;
}