body { background-color: #fff;
    font-family: serif;
    font-size: 100%;
    color: #000;
    margin-left: auto;
    margin-right: auto;
    margin-top: 20px;
    max-width: 72em;
    padding-left: 2em; padding-right: 2em;
}
.auto-style3 {margin: 0px auto 0px auto; text-align: center;}
.auto-style4 {text-align: left;}
.textcenter {text-align: center;}
.textleft {text-align: left;}
.bold {font-weight: bold;}
.italicized {font-style: italic; }
.fontnormal {font-style: normal;}
.banner {margin-bottom: 3em; }
.author {font-weight: bold; }
.title {font-style: italic; }
.journal {font-style: italic; }
.label {background-color:#ddd; padding-left: .2em; padding-right: .2em;}
.vskip {margin-top: 5ex;}
.indent {margin-left: 2em;}
.indented { padding-left: 2em; }
.fontsmall {font-size: 80%;}
.fontlarger {font-size: 120%;}
.error { color: #dd0000; }
.flexlistitem {margin-top:.3ex; margin-bottom:.3ex; padding:.5ex; margin-right: 2em; background-color: #f8f8f8; border-bottom:1px solid #ccc;}

cite {font-style: italic; }
var {font-weight: bold;}
dd {margin-bottom:1ex;}
div.navmenu { display: flex; justify-content: center; }
div.navmenu a {margin: 1em; text-decoration: none;}
ul.nomark {list-style-type: none; margin-left: 0; padding-left: 0;}
ul.nomark li { margin-top: .5em; }
ul.combos {list-style-type: square; margin-left: 0; padding-left: 0; list-style-position: inside;}
ul.combos li { margin-top: .5em; }
h4.combos { color: red; }
div.centered { margin-left: auto; margin-right: auto; }
/*header.triheader { margin-left: auto; margin-right: auto; margin-top: 3em; margin-bottom: 1.5em;
    text-align: center; font-weight: bold; background-color: #fff;}*/
header.triheader { margin-left: auto; margin-right: auto; margin-top: 3em; margin-bottom: 1em;
    text-align: center; font-weight: bold; background-color: #fff;
    display:flex; justify-content:center; align-items:baseline; column-gap: 1em;}
div.preamble-sect { margin-left: auto; margin-right: auto; margin-top: 1em; margin-bottom: 2em;
    background-color: #fff;}
div.preamble-sect p { margin-left: auto; margin-right: auto;}
div.preamble-sect table { margin-left: auto; margin-right: auto;}
div.banner { width: auto; margin-left: auto; margin-right: auto; margin-bottom: 3em;}
div.preamble-sect table.left { margin-left: 0; margin-right: auto; }
div.topnav { width: auto; margin-left: auto; margin-right: auto; margin-bottom: 3em;}
div.topnav h2 { text-align: center; }
div.banner img { margin-left: auto; margin-right: auto; }
h4 { margin-bottom: .4ex;}

table {
  margin-top: 1em;
  margin-bottom: 1em;
  background-color: #fff;
  border: 1px solid #ccd;
  border-collapse: collapse;
  border-spacing: 0;
  width: auto;
  text-align: left;
}
/*
thead {
  box-shadow: inset 0 -2px hsl(0, 0%, 13%); }
tfoot {
  box-shadow: inset 0 2px hsl(0, 0%, 13%); }
*/
tbody tr:nth-child(even) {
  background-color: hsl(0, 0%, 96%); }
td,
th {
  padding: .5rem .5rem;
  vertical-align: top; }
th { font-weight: 700; }

table.tribary { border: none;}
table.left { margin-left: 0; margin-right: auto; }
table.cellborder td { border: 1px solid #bbb;}
table.cellborder th { border-left: 1px solid #bbb; border-right: 1px solid #bbb;}
table.centered { margin-left: auto; margin-right: auto; }
table caption { margin-top: 1ex;  margin-bottom: 1ex; }
table.textcenter td {text-align: center;}
td.navitem { white-space: nowrap;}

hr.blue { width:50%; height:4px; background:#414193; margin-top:2ex; margin-bottom:2ex;}
hr.end-preamble { width:50%; height:4px; background:#414193; margin-top:2ex; margin-bottom:2ex;}
hr.gray {border:none;  width:50%; height:4px; background:#808080; margin-top:2ex; margin-bottom:3ex;}
hr.small { width:50%; height:2px; background:#808080; margin-top:2ex; margin-bottom:2ex;}
hr.narrow-small { width:25%; height:2px; background:#808080; margin-top:2ex; margin-bottom:2ex;}
hr.thin33 { width:33%; height:1px; background:#808080; margin-top:2ex; margin-bottom:2ex;}
hr.small33 { width:33%; height:2px; background:#808080; margin-top:2ex; margin-bottom:2ex;}
hr.sep { border:none; border-top: thin solid #000; width:20%; margin-top:0; margin-bottom:1ex; margin-left:0;}

table.topnav {margin-left: auto; margin-right: auto; table-layout: fixed; width: 95%;}
table.topnav td {text-align: left;}
/*
 */
table tbody td:nth-child(1) {
  width: 3.5em;
}
table tbody td:nth-child(2) {
  width: 30%;
}
table tbody td:nth-child(3) {
  width: 3.5em;
}

table tbody td:nth-child(4) {
  width: 30%;
}
table tbody td:nth-child(5) {
  width: 3.5em;
}
table tbody td:nth-child(6) {
  width: 30%;
}


ul.flexlist {display:flex; justify-content:flex-start; align-items:baseline; flex-wrap: wrap; list-style-position: inside;}
ul.flexlist li {margin-top:.3ex; margin-bottom:.3ex; padding:.5ex; margin-right: 2em; list-style-type: none;
    background-color: #f8f8f8; border-bottom:1px solid #ccc;}

div.tribary {display: grid; grid-template-columns: 6em auto; grid-row-gap: .5ex; align-items: first baseline; }
div.tribary p {margin-top:.2ex; margin-bottom:.5ex; line-height: 1.1;
/*align-self:center;*/
}

div.banner2 { width: auto; margin-left: auto; margin-right: auto; margin-bottom: 0em;
    text-align: center; font-weight: bold; background-color: #fff;
    display:flex; justify-content:center; align-items:baseline; column-gap: 1em;
    margin-bottom:0;
}
p.banner-title { font-family: sans-serif; font-weight: normal; font-size: 140%; margin-bottom:0; }
p.banner-subtitle { font-family: "Palatino" serif; font-weight: normal; font-size: 200%; font-variant: small-caps;
    margin-top:0; margin-bottom:0;}
.glossary-term { color:#500000; }
p.eqn { padding-left: 2em; }
img.centered { margin-left: auto; margin-right: auto; }