style.css

/* reset */
/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License: none (public domain)
*/

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, rembed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}
table {
	border-collapse: collapse;
	border-spacing: 0;
}

/* end reset */

#input {
	width: 18rem;
	height: 2rem;
	margin: 0.5rem;
	padding: 0.25rem;
	border-bottom: 2px solid darkgray;
	text-align: right;
	vertical-align: middle;
	font-family: monospace;
	font-size: 2rem;
	cursor: default;
	display: inline-block;
}

.button {
	display: inline-block;
	width: 3rem;
	height: 3rem;
	margin: 0.5rem;
	padding: 0.25rem;
	border: 2px solid gray;
	border-radius: 1rem;
	text-align: center;
	vertical-align: middle;
	font-family: monospace;
	font-size: 2rem;
	cursor: pointer;
}

.button-small {
	display: inline-block;
	width: 2rem;
	height: 2rem;
	margin: 0.25rem;
	padding: 0.125rem;
	border: 2px solid gray;
	border-radius: 0.5rem;
	text-align: center;
	vertical-align: middle;
	font-family: monospace;
	font-size: 1rem;
	cursor: pointer;
}

.button:hover, .button-small:hover {
	background-color: lightgray;
}

#hangman {
	display: none;
	text-align: center;
}

.blank {
	display: inline-block;
	font-size: 2rem;
	margin: .25rem;
}

#hangmanImage {
	height: 16rem;
	max-height: 64vh;
}

#hangmanText {
	font-size: 2rem;
	margin: 0.5rem;
	font-family: sans-serif;
}

#calculation {
	font-size: 1.5rem;
	margin: 0.5rem;
	font-family: monospace;
}

#delete {
	display: inline-block;
	height: 2rem;
	margin: 0.5rem;
	margin-left: 0;
	padding: 0.5rem;
	padding-left: 0;
	cursor: pointer;
}