body {background:lightcyan}
h1 {text-align:center; color:red; background:white}
h2 {text-align:center; color:red}
h3 {color:green}
img {vertical-align:middle}
.center {text-align:center}
.left   {text-align:left}
.right  {text-align:right}
.blackonwhite {color:black; background:white}
table.center-table {margin-left:auto; margin-right:auto }
li.pad-below {padding-bottom:2ex}
ul.pad-above {padding-top:2ex}
hr.footnote {margin-left:0; margin-right:auto; width:33%}
div.footnote {text-align: left}
div.poetry {font-family:"New Century Schoolbook", serif}
div.example {margin-left:5%; margin-right:5%;  padding:0ex 3ex; background-color:white;}