style.css

body{
	font-family: "OpenSans", open-sans, Tahoma;
	margin: 3vmin;
}

body>div:first-child {
	justify-content: center;
	display: flex;
	flex-wrap: wrap;
}

#screensize-handle, #distance-handle, #bezel-handle, #radius-handle {
	width: 2em;
	height: 1.5em;
	top: 50%;
	margin-top: -.75em;
	margin-left: -1em;
	text-align: center;
	line-height: 1.5em;
}

#radius-handle {
	width: 4em;
}

label {
	display: block;
	margin: 1em 0 0.3em 0;
	font-weight: bold;
}

fieldset label:first-of-type {
	margin-top: 0;
}

.ui-slider {
	margin-top: 0.7em;
}

fieldset {
	border: 1px solid silver;
	padding: 1em 1.3em;
	min-width: 300px;
}

ul {
	margin: 0;
	padding: 0;
	list-style-type: none;
}

ul li {
	margin-bottom: 0.6em;
	display: grid;
}

ul li span:first-child {
	display: block;
	margin-bottom: 0.2em;
}

ul li span:first-child::after {
	content: ':';
}

ul li span:last-child {
	font-weight: bold;
	padding-left: 1.5em;
}