.atn { font-weight: bolder }
.cmt  { color: maroon; font-style: italic }
.box  { background-color: yellow; border: solid 1px navy }
.calc { color: navy; font-style: normal; font-weight: bolder; font-size: x-small; text-decoration: underline overline }
.eqn { font-weight: bolder; background-color: yellow; border: solid 1pt blue }
.note { font-size: smaller }