style.css

* {
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  background: #fafafa;
}

html {
  /*font-size: 14px;*/
    padding: .5em;
}

code {
    font-size-adjust: 0.7;
    font-family: monospace;
    font-style: normal;
}

body {
  border-radius: .6em;
  color: #333;
  font: 1.1em/1.3 Helvetica, Arial, Verdana, sans-serif;
  hyphens: none;
  margin: 0 auto;
  max-width: 65em;
  padding: .5em;
}

.header :first-child {
  margin-top: 0;
}

header #logo {
  height: 72px;
}

header #logo img {
  float: left;
}

header #translations {
  float: right;
}

.footer :last-child {
  margin-bottom: 0;
}

h1,
h2,
h3,
h4,
h5,
p,
dl,
ul,
ol {
  margin: .5rem 0;
}

p {
  margin-top: 1.5rem;
}

ul, ol { margin-left: 3em;}

.long { column-count: 2;}

a,
h1,
h2,
.menu a.active-tab {
  color: #005a9c;
}

html.deprecated h2 {
    color: black;
}

a:hover {
  color: #111;
}

a.ref,
.has-ref {
  cursor: pointer;
  display: inline;
}

a.ref {
  color: inherit;
  display: none;
  font-size: 1em;
  left: 0;
  opacity: .25;
  position: absolute;
  text-decoration: none;
}

.has-ref:hover > a.ref {
  display: block;
}

.has-ref:target > a.ref {
  display: block;
  opacity: .5;
}

.has-ref {
  margin-left: -1em;
  padding-left: 1em;
  position: relative;
}

.graphic {
  height: 13em;
  margin: 0 -1.5em;
  overflow: hidden;
  position: relative;
}

.graphic img {
  bottom: 0;
  height: 100%;
  left: 0;
  position: absolute;
  width: 100%;
}

.box,
.type {
  box-shadow: .3em .3em 0 rgba(0,0,0,.1);
  border: 1px solid #ccc;
}

/* If you rather clip than squeeze the image, remove `height: 100%`. */
.box {
  clear: right;
  color: #666;
  float: right;
  font-size: 1rem;
  margin-left: 3rem;
  padding: 1em;
  width: 19em;
  z-index: 2;
  background-color: #f2fdff;
  margin-bottom: 1em;
}

.box + .box {
  margin-top: 2rem;
}

.box h2 {
  font-size: 1.2rem;
  line-height: 1.4;
  margin: 0;
}

.box *:last-child {
  margin-bottom: 0;
}

.image-paragraph-host {
  margin-bottom: .75em;
}

.image-paragraph {
  margin: 0;
}

.image-link {
  display: block;
}

.image-link img {
  max-width: 225px;
  padding: 2.5vmin 0;
  width: 100%;
}

.footer {
  border-top: 1px solid #eee;
  clear: both;
  color: #777;
  font-size: 1rem;
  margin: 2rem 0;
  padding-top: .5rem;
}

.menu {
  background: #005a9c;
  font-size: 1rem;
  margin: 0 0 2em;
}

.menu,
.menu ul,
.menu li {
  width: 100%;
}

.menu ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.menu li + li a {
  border-left: 2px solid #fff;
}

.menu a {
  color: #eee;
  display: block;
  font-size: .95rem;
  height: 100%;
  padding: .6rem;
  text-align: center;
  text-decoration: none;
  transition: .05s background ease-in-out, .05s color ease-in-out;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-user-select: none;
  user-select: none;
  width: 100%;
}

.menu a:active {
  opacity: .75;
}

.menu a.active-tab {
  background: #fff;
  font-weight: bold;
  border-top: solid thin #005a9c;
  border-bottom: solid thin #005a9c;
}

.menu a:link:hover {
  background: #111;
  color: #fff;
}

ul {
  list-style: square;
  margin-left: 0;
  padding-left: 1em;
}

blockquote {
  margin-left: 1em;
}

.main {
  margin-top: 3rem;
}

.prefix { text-align: right; display: inline-block; min-width: 12em; max-width: 12em; font-size:0.7em; overflow: hidden;  text-overflow: ellipsis;}


dd {
    margin: 0 0 .6em;
    margin-left: 12em;
}

dt {
  display: flex;
  align-items: baseline;  
  margin-top: 1rem;
}

.main dt {
  margin-top: 2rem;
}

img {
  display: block;
  max-width: 100%;
}

h1,
h2,
h3,
h4 {
  break-after: avoid;
}

.main h2 {
  margin-top: 1.5em;
}

address {
  line-height: .25em;
}

@media all and (min-width: 860px) {
  html {
    background: #005a9c;
  }
  html.deprecated {
    background: #9C9C9C;
  }

  label[for=collapse] { display: none;}
}

@media all and (max-width: 860px) {
  html {
    padding: 0;
  }

  body {
    border-radius: 0;
  }

  .menu ul {
    display: block;
  }

  .menu li + li a {
    border-top: 2px solid #fff;
    border-left: 0;
  }

  .menu li + li a {
    margin-left: 0;
  }

  .graphic {
    height: 10em;
    margin: 0;
  }

  /* The right-floating boxes become normal blocks. */
  .box {
    float: none;
    margin-left: 0;
    width: auto;
  }

  nav #collapse:checked ~ ul{
      display:none;
      margin-top:0;
  }

}

@page {
  margin: 2cm;
}

@media print {
  html {
    background: none;
    padding: 0;
  }

  body {
    background: none;
    border-radius: 0;
    padding: 0;
  }
}

@media print {
  h1 {
    background: none;
    color: #111;
  }

  nav, aside {
    display: none;
  }

  body,
  article {
    margin: 0;
    padding: 0;
    width: 100%;
  }

  @page {
    margin: 2cm;
  }

  h2, h3 {
    page-break-after: avoid;
  }

  article {
    page-break-before: always;
  }

  ul, img {
    page-break-inside: avoid;
  }

  #dates {
    display: none;
  }
}


dt strong code, .legend code {
    padding: 3px;
    display: inline-block;
    border-radius: 10%;
}

.css {
    background-color: #2965f1;
    color: white;
}
.markup {
    background-color: #f16529;
    color: white;
}
.webidl {
    background-color: #f7df1e;
}
.cddl {
    background-color: #dff71e;
}

.http {
    background-color: #eee;
}

/* collapsible nav bar
   adapted from https://sowebsited.com/basics/collapse.html */
nav label:before{
  height:2px;
  width:20px;
  background:white;
  display:inline-block;
  content:"";
  box-shadow:0px -5px 0px 0px  white,
             0px -10px 0px 0px white;
  margin-right:10px;
  transition:all .5s;
  position:relative;
  opacity:0.5;
}
nav label{
  display:block;
  padding:10px;
  color:white;  
  cursor:pointer; 
}
nav input[type="checkbox"]{
  visibility:hidden;
  position:absolute;
}
nav #collapse:checked + label:before{
  position:relative;
  opacity:1;
}
#terms {
  float: left
}

dt a.self-link {
    content: "§";
    text-decoration: none;
    font-size: 0.8rem;
    opacity: .8;
    vertical-align: middle;
    display: inline-block;
}