@font-face {
	font-family: "NumWorks";
	src: url("../Fonts/numworks-keys-regular.ttf");
}
@font-face {
	font-family: "TI-84";
	src: url("../Fonts/TI84PlusCEKeys.ttf");
}
body {
	/*background-image: url('../Images/beigebackground.jpg');*/
}
div.Example > h4::before { /*automatically number the examples*/
	counter-increment: example;
	content: "Example " counter(example) ": ";
}
div.TryIt > h5::before { /*automatically number the Try Its*/
	counter-increment: tryit;
	content: "Try It " counter(tryit);
}
p { /*normal paragraph*/
	margin-top:0em;
	margin-right:0em;
	margin-bottom:.5em;
	margin-left:0em;
	text-align:justify;
	font-family:serif;
}
h2 + p::first-letter {
	float: left;
	font-size:325%;
	font-family: "Times New Roman", serif;
	line-height:60%;
	padding-top:0em;
}
p.first:first-letter { /*first letter of each section larger*/
	float: left;
	font-size:325%;
	font-family:serif;
	line-height:60%;
	padding-top:0em;
}
.center {  /*center text like for equations*/
	text-align:center;
}
.verse { /*verse at the top of each lesson*/
	margin-top:1em;
	margin-right:1em;
	margin-bottom:.5em;
	margin-left:1em;
	text-align:center;
	font-family:serif;
	font-style:italic;
	break-before: right;
}
.printleft { /*chapter title pages print on left page*/
	break-before: left;
}
img.divider {
	width:8em;
	margin-top:1em;
}
.footer {
	margin-top:1em;
	margin-right:0em;
	margin-bottom:.5em;
	margin-left:0em;
	text-align:center;
	font-family:serif;
	font-size:small;
	}
h1 { /* lesson titles */
	margin-top:8%;
	margin-bottom:0.5em;
	text-align:justify;
	background:dodgerblue;
	border-top:solid black 2px;
	border-left:solid black 4px;
	border-bottom:solid black 2px;
	border-right:solid black 2px;
	padding:1.0pt 4.0pt 1.0pt 4.0pt;
	font-size:2em;
	font-family:serif;
	font-variant:small-caps;
	clear: both;
	counter-reset: example figure tryit;
	break-before: avoid;
	}
h2 { /* section titles */
	margin-top:1em;
	margin-right:0em;
	margin-bottom:0em;
	margin-left:0em;
	margin-bottom:0.25em;
	text-align:justify;
	break-after:avoid;
	background:lightgreen;
	border-top:solid 1px;
	border-bottom:solid 1px;
	border-left:solid 3px;
	border-right:solid 1px;
	padding:0.25em;
	font-size:1.5em;
	font-family:serif;
	font-variant:small-caps;
	font-weight:normal;
	clear: both;
	}
h3 { /* subsection titles */
	margin-top:2.0pt;
	margin-right:0em;
	margin-bottom:0em;
	margin-left:0em;
	margin-bottom:0.1em;
	border-bottom: solid 1px;
	text-align:justify;
	break-after:avoid;
	padding:0em 0em 1.0pt 0em;
	font-size:1.25em;
	font-family:serif;
	color:black;
	font-variant:small-caps;
	font-weight:normal;
	clear: both;
	}
h4 	{ /* examples */
	margin-top:2.0pt;
	margin-right:0em;
	margin-bottom:0em;
	margin-left:0em;
	margin-bottom:0.1em;
	text-align:justify;
	break-after:avoid;
	padding:0em 0em 1.0pt 0em;
	font-size:1.2em;
	font-family:serif;
	color:green;
	font-weight:normal;
	clear: both;
	}
h5 { /* try its */
	margin-top:2.0pt;
	margin-right:0em;
	margin-bottom:0em;
	margin-left:0em;
	margin-bottom:.1em;
	text-align:justify;
	break-after:avoid;
	font-size:1em;
	font-family:cursive;
	color:blue;
	font-weight:normal;
	clear: both;
	}
h6 { /* rulebox */
	margin-top:2.0pt;
	margin-right:0em;
	margin-bottom:0em;
	margin-left:0em;
	margin-bottom:.1em;
	text-align:justify;
	break-after:avoid;
	font-size:1em;
	font-family:serif;
	color:black;
	font-weight:bold;
	}
.credit {
	margin-top:0em;
	margin-right:0em;
	margin-bottom:.5em;
	margin-left:2em;
	text-align:justify;
	font-family:serif;
	/*text-indent:-2em;*/
	font-size:small;
	}
.box { /*make calculator keys*/
	border:solid 1px;
	border-radius:3px;
	padding:1pt;
	font-family:sans-serif;
	margin-top:1pt;
	margin-bottom:1pt;
	font-style:normal;
	font-weight:normal;
}
div.Example { /* example divs*/
	margin-top:0em;
	margin-right:0em;
	margin-bottom:4.0pt;
	margin-left:0em;
	background:lightyellow;
	border-left:solid 1px;
	border-bottom:solid 2px;
	border-top:solid 1px;
	border-radius:15px 0px 0px 15px;
	padding:2pt;
	font-family:serif;
	clear: both;
	widows: 3;
	orphans: 3;
	}
div.RuleBox { /*div containing rules*/
	margin-top:0em;
	margin-right:0em;
	margin-bottom:8.0pt;
	margin-left:0em;
	text-align:justify;
	background:lightgrey;
	border-top:solid black 1px;
	border-bottom: solid black 2px;
	border-left:solid black 1px;
	border-right:solid black 2px;
	border-radius:15px;
	padding:1.0pt 4.0pt 1.0pt 4.0pt;
	font-family:serif;
	color:black;
	break-inside: avoid;
	clear: both;
	}
div.Summary { /*div containing lesson summary*/
	margin-top:0em;
	margin-right:0em;
	margin-bottom:8.0pt;
	margin-left:0em;
	text-align:justify;
	background:lightgrey;
	border-top:solid black 1px;
	border-bottom: solid black 2px;
	border-left:solid black 1px;
	border-right:solid black 2px;
	border-radius:15px;
	padding:1.0pt 4.0pt 1.0pt 4.0pt;
	font-family:serif;
	color:black;
	clear: both;
	}
div.TryIt { /*Try It sections*/
	margin-top:0em;
	margin-right:0em;
	margin-bottom:4.0pt;
	margin-left:0em;
	background:lightpink;
	border-left:solid 1px;
	border-bottom:solid 1px;
	border-top:solid 1px;
	/*border-radius:15px 0px 0px 15px;*/
	padding:2pt;
	font-family:serif;
	clear: both;
	break-inside: avoid;
}
figure.equation {
	display: block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin: 0.5em;
	padding: 0.5em;
	margin-left:auto;
	margin-right:auto;
	break-inside: avoid;
	}
img.eq {
	max-width:100%;
}
figure.fig { /*standard square or horizontal pictures or figures*/
	display: block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin: 0.5em;
	margin-left:auto;
	margin-right:auto;
	padding: 0.5em;
	break-inside: avoid;
	width:300px;
	}
figure.fig > img { /*img in standard figure*/
	object-fit:contain;
	max-width:100%;
	max-height:100%;
}
figure.figvert { /*vertical figure*/
	display: block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin-left: auto;
	margin-right: auto;
	padding: 0.5em;
	break-inside: avoid;
	height:300px;
}
figure.figvert > img {
	max-height:100%;
}
figure.fig2 { /*two figures side by side*/
	display: block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin: 0.5em;
	margin-left:auto;
	margin-right:auto;
	padding: 0.5em;
	break-inside: avoid;
	max-width:600px;
	}
figure.fig2 > img {
	width:49%;
	display: inline-block;
	border: solid black 1px;
}

figure.wide { /*1 wide figure*/
	display: block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin: 0.5em;
	margin-left:auto;
	margin-right:auto;
	padding: 0.5em;
	break-inside: avoid;
	width:600px;
	}
figure.wide > div {
	max-width:100%;
	display: inline-block;
}

figure.fig3 { /*three figures side by side*/
	display: block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin: 0.5em;
	margin-left:auto;
	margin-right:auto;
	padding: 0.5em;
	break-inside: avoid;
	max-width:900px;
	}
figure.fig3 > img {
	width:32%;
	display: inline-block;
	border: solid black 1px;
}
figure.cover {
	display: block;
	text-align: center;
	font-family:serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin: 0.5em;
	margin-left:auto;
	margin-right:auto;
	padding: 0.5em;
	page-break-inside: avoid;
	max-width:50%;
	}
figure.cover img {
	width:100%;
}
figure.coververt {
	display: block;
	text-align: center;
	font-family:serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin: 0.5em;
	margin-left:auto;
	margin-right:auto;
	padding: 0.5em;
	page-break-inside: avoid;
	height:500px;
	}
figure.coververt > img {
	max-height:100%;
}
span.ans { /*figures in the answers*/
	display: inline-block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	margin: 0.5em;
	break-inside: avoid;
	max-width:200px;
	}
span.ans img {
	border: solid 1px;
	max-width:100%;
}
figure.ans { /*alternate figures in answers used in other places word problems*/
	display: inline-block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	margin: 0.5em;
	break-inside: avoid;
	width:200px;
	}
figure.ans img {
	max-width:100%;
	border: solid 1px;
}
figure.ansvert { /*like figure.ans but for vertical figures*/
	display: inline-block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	margin: 0.5em;
	break-inside: avoid;
	width:min-content
	height:200px;
}
figure.ansvert img {
	max-height:100%;
	border: solid 1px;
}
figure.inlinefig { /*inline figure*/
	display: inline-block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin: 0.5em;
	margin-left:auto;
	margin-right:auto;
	padding: 0.5em;
	break-inside: avoid;
	max-width:300px;
	}
figure.inlinefig img {
	max-width:100%;
	}
figure.inlinefigvert { /*inline vertical figure*/
	display: inline-block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin: 0.5em;
	margin-left:auto;
	margin-right:auto;
	padding: 0.5em;
	break-inside: avoid;
	height:300px;
	}
figure.inlinefigvert img {
	max-height:100%;
	}
figure.video {
}
span.hwfig { /*inline figure used in practice work questions*/
	display: inline-block;
	text-align: center;
	font-family: serif;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	border: none;
	margin-left:1em;
	margin-top:0.5em;
	break-inside: avoid;
	break-before: avoid;
	width:300px;
	}
span.hwfig img {
	max-width:100%;
	}
img.border { /*put a border around an img*/
	border:solid 1px;
}
img.graph { /*enlarge graphs when hover*/
    transition:transform 0.25s ease;
}

img.graph:hover { /*enlarge graphs when hover*/
    -webkit-transform:scale(1.5); /* or some other value */
    transform:scale(1.5);
}
span.figcap {
	width:288px;
	display: inline-block;
}	
.floatr { /*figure that floats on the right*/
	float: right;
	margin: 4px;
	border: solid 0px;
}
.clearfloat { /*clears floatr*/
	clear: both;
}
figcaption { /*caption for figures*/
	text-align:center;
	font-size:small;
	font-family:serif;
	color:blue;
	font-style: italic;
	text-indent: 0;
	}
figcaption::before {
	counter-increment: figure;
	content: "Figure " counter(figure) ": ";
}
figcaption.NoNum::before {
	counter-increment: none;
	content: "";
}
.caption { /*????*/
	text-align:center;
	font-family:serif;
	color:blue;
	font-style: italic;
	font-size: small;
	text-indent: 0;
	}
.TableDiv {
	display: block;
	margin: auto;
	break-inside: avoid;
	}
table.AlignLeft {
	text-align: left;
	}
table.AlignRight {
	text-align: right;
	}
table.inline {
	display: inline-block;
}
table.NoBorder {
	border: 0px;
	caption-side: top;
	margin-left: auto;
	margin-right: auto;
	break-inside: avoid;
	}
table.NoBorder  td {
	border: 0px;
	padding: 0.5em;
	}
table.NoBorder  th {
	border: 0px;
	padding: 3px;
	font-weight: bold;
	}
table.intBorder {
    border-collapse: collapse;
    border-style: hidden;
	caption-side: top;
	text-align: center;
	margin-left: auto;
	margin-right: auto;
	break-inside: avoid;
}
table.intBorder td, table.intBorder th {
    border: 1px solid black;
}
table.LongDiv {
	border: 0px;
	caption-side: top;
	margin-left: auto;
	margin-right: auto;
	break-inside: avoid;
	text-align: right;
	}
table.LongDiv  td {
	border: 0px;
	padding: 0px;
	}
table.LongDiv  td.Underline {
	border-bottom: 1px solid black;
	padding: 0px;
	}
table.LongDiv  td.Explain {
	border: 0px;
	padding: 0em 0em 0em 2em;
	text-align: left;
	}
table.SynDiv {
	border: 0px;
	caption-side: top;
	margin-left: auto;
	margin-right: auto;
	break-inside: avoid;
	text-align: right;
	}
table.SynDiv  td {
	border: 0px;
	padding: 0em 1em 0em 1em;
	}
table.SynDiv  td.Underline {
	border-bottom: 1px solid black;
	}
table.SynDiv  td.Explain {
	border: 0px;
	padding: 0em 0em 0em 2em;
	text-align: left;
	}
table.SynDiv td.Divisor {
	padding: 0px 2px 0px 0px; 
	border-bottom: 1px solid black;
	border-right: 1px solid black;
	}
table.SynDiv td.Remainder {
	border-bottom: 1px solid black;
	border-left: 1px solid black;
	}
table {
	border-collapse: collapse;
	border: 1px solid black;
	caption-side: top;
	text-align: center;
	margin-left: auto;
	margin-right: auto;
	break-inside: avoid;
	}
td { /*table cell*/
	border: 1px solid black;
	padding: 3px;
	}
th { /*table header cell*/
	border: 1px solid black;
	padding: 3px;
	font-weight: bold;
	}
caption { /*table caption*/
	text-align:center;
	font-size:small;
	font-family:serif;
	color:blue;
	font-style: italic;
	text-indent: 0;
	}
div.Group {
	break-inside: avoid;
	}
ul {
	margin-top:0em;
	margin-right:0em;
	margin-bottom:.5em;
	margin-left:0em;
	text-align:justify;
	font-family:serif;
	}
ol {
	margin-top:0em;
	margin-right:0em;
	margin-bottom:.5em;
	margin-left:0em;
	text-align:justify;
	font-family:serif;
	}
.instructions { /* instructions in assignments*/
	margin-top:0em;
	margin-right:0em;
	margin-bottom:8.0pt;
	margin-left:0em;
	break-after:avoid;
	font-family:serif;
	font-weight:bold;
	break-inside: avoid;
	}
.answers {
	margin-top:0em;
	margin-right:0em;
	margin-bottom:.5em;
	margin-left:0em;
	text-align:justify;
	font-family:serif;
	font-size:small;
	}
li {
	margin-top:0em;
	margin-right:0em;
	margin-bottom:0em;
	margin-left:0em;
	text-align:justify;
	font-family:serif;
	}
	ol.hw {
}
ol.hw > li { /*automatically number practice work*/
	margin-top:0em;
	margin-right:0em;
	margin-bottom:1em;
	margin-left:0em;
	text-align:justify;
	font-family:serif;
	clear: both;
}
ol.hw > li.instructions {
	display: block;
	clear: both;
}
/*Table of Contents*/

table.toc {
	border-collapse: collapse;
	border: 0px;
	caption-side: top;
	text-align: left;
	margin-left: auto;
	margin-right: auto;
	font-family:serif;
}
table.toc  td {
	border: 0px;
	padding: 10px;
}
table.toc  th {
	border: 0px;
	padding: 10px;
	font-weight: bold;
}
li.chapter {
	margin-bottom:3px;
	background:dodgerblue;
	border-top:solid 3px;
	border-bottom:solid 1px;
	border-left:solid 3px;
	border-right:solid 1px;
	padding:0.25em;
	font-size:large;
	font-family:serif;
	font-variant:small-caps;
	font-weight:normal;
}
li.lesson {
	margin-bottom:2px;
	background:lightgreen;
	border-top:solid 1px;
	border-bottom:solid 1px;
	border-left:solid 1px;
	border-right:solid 1px;
	border-radius:15px;
	padding:0.25em;
	font-size:medium;
	font-family:serif;
	font-variant:normal;
	font-weight:normal;
}
h1.TOC {
	margin-bottom:0.5em;
	margin-top:0em;
	text-align:justify;
	background:dodgerblue;
	border-top:solid black 2px;
	border-left:solid black 4px;
	border-bottom:solid black 2px;
	border-right:solid black 2px;
	padding:1.0pt 4.0pt 1.0pt 4.0pt;
	font-size:2em;
	font-family:serif;
	font-variant:small-caps;
	font-weight:bold;
	}
a:link.button {
	color:black;
	text-decoration:none;
	background-color:lightpink;
	border:solid red 2px;
	border-radius:15px;
	padding:4px;
}
a:visited.button {
	color:black;
	text-decoration:none;
	background-color:lightpink;
	border:solid red 2px;
	border-radius:15px;
	padding:4px;
}
a:hover.button {
	color:black;
	text-decoration:none;
	background-color:lightgreen;
	border:solid red 2px;
	border-radius:15px;
	padding:4px;
}
a:active.button {
	color:white;
	text-decoration:none;
	background-color:red;
	border:solid red 2px;
	border-radius:15px;
	padding:4px;
}
dfn { /* definitions*/
	font-style:normal;
	font-weight:bold;
}
span.lowercase { /*To fix having e or i in the small cap titles*/
	font-variant:normal;
}
span.width288 {
	display:inline-block;
	width:288px;
}
span.underline { /*underline text*/
	text-decoration: underline;
}
span.sans { /*change font to sans-serif for calculator buttons*/
	font-family:sans-serif;
}
span.blue {
	color:blue;
}
span.red {
	color:red;
}
span.green {
	color:green;
}
span.purple {
	color:purple;
}
span.orange {
	color:orange;
}
span.indigo {
	color:indigo;
}
span.numworks { /*NumWorks calculator buttons*/
	font-family: "NumWorks";
	font-style: normal;
}
span.ti84 { /*TI-84 calculator buttons*/
	font-family: "TI-84";
	font-style: normal;
}
.overline {
	text-decoration: overline;
}
.ch_contents { /*lesson list on chapter title pages*/
	margin-top:0em;
	margin-right:0em;
	margin-bottom:.5em;
	margin-left:0em;
	text-align:center;
	font-family:serif;
	font-variant:small-caps;
	font-size:1.25em;
}

#menuToggle {
	display: block;
	position: relative;
	top: 37px;
	left: 10px;
	max-width: 90%;
	z-index: 1;
	-webkit-user-select: none;
	user-select: none;
}

#menuToggle input {
	display: block;
	width: 40px;
	height: 32px;
	position: absolute;
	top: -7px;
	left: -5px;
	cursor: pointer;
	opacity: 0; /* to hide it */
	z-index: 2; /* put it over the menu icon */
	-webkit-touch-callout: none;
}

/* menu icon */
#menuToggle span {
	display: block;
	width: 33px;
	height: 4px;
	margin-bottom: 5px;
	position: relative;
	background: blue;
	border-radius: 3px;
	z-index: 1;
	transform-origin: 4px 0px;
	transition: transform 0.5s cubic-bezier(0.77,0.2,0.05,1.0),
				background 0.5s cubic-bezier(0.77,0.2,0.05,1.0),
				opacity 0.55s ease;
}

#menuToggle span:first-child {
	transform-origin: 0% 0%;
}

#menuToggle span:nth-last-child(2) {
	transform-origin: 0% 100%;
}

#menuToggle input:checked ~ span {
	opacity: 1;
	transform: rotate(45deg) translate(-2px, -1px);
	background: blue;
}

#menuToggle input:checked ~span:nth-last-child(3) {
	opacity: 0;
	transform: rotate(0deg) scale(0.2, 0.2);
}

#menuToggle input:checked ~ span:nth-last-child(2) {
	transform: rotate(-45deg) translate(0, -1px);
}

#menu {
	position: absolute;
	width: auto;
	margin: -100px 0 0 -50px;
	padding: 50px;
	padding-top: 125px;
	list-style-type: none;
	-websit-font-smoothing: antialiased;
	transform-origin: 0% 0%;
	transform: translate(-100%, 0);
	transition: transform 0.5s cubic-bezier(0.77,0.2,0.05,1.0);
	border: solid 2px blue;
	border-radius: 15px;
	background: lightblue;
}

#menu li {
	padding: 10px 0;
	
}

#menuToggle input:checked ~ ul {
	transform: none;
}

#menu a:link , #menu a:visited{
	font-family: sans-serif;
	font-weight: bold;
	color: blue;
	text-decoration: none;
}

#menu a:hover, #menu a:focus {
	color: red;
	font-family: sans-serif;
	font-weight: bold;
	text-decoration: none;
}

#menu a:active {
	color: darkred;
	font-family: sans-serif;
	font-weight: bold;
	text-decoration: none;
}

.redback { /*Title bar at top*/
	border-style: solid;
	border-color: red;
	border-width: 2px;
	border-radius: 15px;
	background-color: #ffcccc;
}
div.ads {
	float: right; 
	display: inline-block; 
	border: 1px solid gray; 
	border-radius: 12px; 
	background-color: lightgray; 
	text-align: center;
	width: 150px;
}
p.ad {
	font-size: 0.8em;
	padding: 5px; 
	margin: 0;
}
p.Title {
	text-align: center;
	font-weight: bold;
	font-size: 2em;
	font-family: sans-serif;
	color: Blue;
	border-bottom: 1px solid red;
	padding-bottom: 2px;
	display: block;
	margin: auto 0;
}

p.renweb {
	border-top: 1px solid red;
	text-align: center;
	font-weight: bold;
	margin: 0;
	padding: 7px;
}
p.title_page {
	padding-top: 20%;
	text-align: center;
	font-weight: bold;
	font-size: 4em;
	font-family: sans-serif;
	color: Blue;
	border-bottom: 1px solid black;
	padding-bottom: 2px;
	display: block;
	margin: auto 0;
}
p.subtitle_page {
	padding-top: 10%;
	text-align: center;
	font-weight: bold;
	font-size: 2em;
	font-family: sans-serif;
	padding-bottom: 2px;
	display: block;
	margin: auto 0;
}
p.copyright {
	padding-top: 15%;
	text-align: center;
	font-family: sans-serif;
	padding-bottom: 2px;
	display: block;
	margin: auto 0;
}
body.fullpage {
   margin: 0;
   padding: 0;
}
section.cover {
   display: block;
   text-align: center;
   height: 95%;
}
img#coverimage {
   height: 95%;
}
/* Printing to a book */
@media print {
	header, footer, figure.video, figure.coververt, .dontprint {
		display: none !important;
	}
	body {
		zoom: 75%;
	}
	figure.fig > div {
		max-width: 225px !important;
	}
	figure.fig2 {
		max-width: 450px !important;
	}
	figure.wide {
		max-width: 450px !important;
	}
	figure.fig3 {
		max-width: 675px !important;
	}
	figure.figvert > div {
		height: 225px !important;
	}
	figure.ans {
		max-width: 150px !important;
	}
	span.ans {
		max-width: 150px !important;
	}
	figure.ansvert img {
		height: 150px !important;
	}
	figure.inlinefig {
		max-width: 225px !important;
	}
	figure.inlinefigvert {
		height: 225px !important;
	}
	span.hwfig {
		max-width: 225px !important;
	}
	ol.hw {
		columns: auto 2;
		column-gap: 40px;
	}
	div.twocolumns {
		columns: auto 2;
		column-gap: 40px;
		column-rule: solid black 1px;
	}
	ol.answers {
		columns: auto 3;
		column-gap: 40px;
	}
	widows: 3;
	orphans: 3;
}
@page {
	size: letter;
}
@page :right {
	margin-top: 0.3in;
	margin-bottom: 0.5in;
	margin-right: 0.3in;
	margin-left: 0.88in; /* book w/ gutter 0.88*/
}
@page :left {
	margin-top: 0.3in;
	margin-bottom: 0.5in;
	margin-right: 0.88in; /* book w/ gutter 0.88*/
	margin-left: 0.3in;
}