* { box-sizing: border-box; }
body {
	font-family: Helvetica, Arial, sans;
}

a { text-decoration: none; }
.content p { line-height: 150%; }
.align_right { float: right; margin-left: 1em; }
.clearfix:after{content:""; display:table; clear:both;}

/*  Layout  */
.layout {
	width: 85%;
	margin: 0 auto;
	max-width: 900px;
	}
	
/* Header
	- Academic titles have 2 parts:
   1. Punny fun */
.header h2 {
	font-size: 150%;
	margin-bottom: 0;
	}
/* 2. Boring explanation */
.header h3 {
	margin-top: 0;
	margin-bottom: 0;
	font-size: 110%;
	font-style: italic;
	font-weight: normal;
	}
.header p {
	margin-top: 0.5em;
	border-bottom: 1px solid black;
	}

/* Menu */

#menu { text-align: center; padding-bottom: 1em; border-bottom: 1px solid black; }

#menu a {
	color: #225;
	font-weight: bold;
}

#menu button {
	display: inline;
	margin: 0 auto;
	border: none;
  background-color: transparent;
  padding: 0 0.5em;
  outline: none;
  cursor: pointer;
  transition: 0.3s;
  position: relative;
  z-index: 1;
}

#menu button.hamburger { 
	display: none; 
	float: none; 
}

@media screen and (max-width: 600px) {
	.layout { width: 100%; }
	#menu { text-align: left; }
	#menu button.hamburger {
	 	display: block;
		}
	#menu>button:not(.hamburger) {
		display: none;
		}
	#menu.responsive>button:not(.hamburger) {
		display: inline;
		}
}