_badge.scss

// Default badge

$pt-color-primary:  #5cb85c;
$pt-color-white:    #fff;

.pt-badge {
	background: $pt-color-primary;
	border-radius: 100%;
	color: $pt-color-white;
	font-size: 12px;
	line-height: 1.2;
	padding: 15px;
	position: absolute;
	top: -20px;
	right: -20px;
	text-align: center;
	width: 100px;
	height: 100px;
	z-index: 10;

	> span  {
		display: table;
		width: 100%;
		height: 100%;

		> span {
			display: table-cell;
			vertical-align: middle;
		}
	}
}

badge.html

<div class="pt-badge">
    <span>
        <span>
            Badge
        </span>
    </span>
</div>