svg {
  overflow: visible;
}

*, *:before, *:after {
  -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box;
 }

body, body:before, body:after {
  margin:0;
  margin-right: 30%;
}
html,body {
  overflow: auto;
  height: 100%;
  margin: 0;
  -webkit-overflow-scrolling: touch;
}

#header {
  position: relative;
  top:0px;
  height: 20%;
  width: 100%;
  background: #f8f8f8;
  border: 1px solid;
  border-color: #e7e7e7;
  border-width: 0 0 1px;
  cursor: pointer;
}

#header p {
  padding-top: 1vh;
  position: relative;
  margin: auto;
  text-align: center;
  font-size:6vmin;
}

#header p:hover{
  color: #337ab7;
}

#header p svg {
  margin:0;
  height: 8vmin;
  max-height: 8vmin;
  cursor: default;
}

h1, h2, p {
  margin-left: 5%;
}
h3 {
  text-align: center;
  clear: both;
  margin-top: 10%;
  margin-bottom: -2%;
}

#table {
  width: 100%;
}

table {
  width: 90%;
  margin-top: 0px;
  margin-left: 5%;
  clear: both;
  border-collapse: initial;
  border-spacing: initial;
}

table, th, td {
  border: 1px solid black;
  padding: 2px;
} 
table.structure {
  border: 0;
}
table.structure td:hover{
  background: #e7e7e7;
}
th, td {
  position: relative;
  height: 50px;
}
table.structure th, table.structure td {
  height: 13px;
}
table.main th, table.main td {
  width: 5.6%;
} 
table.sub th, table.sub td {
  width: 14.3%;
} 
table.main th, table.sub th {
  background: lightgray;
}

table th, table td{
  text-align: center;
  box-sizing: border-box;
}

th {
	background:lightgray
}

th.prime {
  font-size: 150%;
}
td svg {
  position: absolute;
  display: block;
  top:2.5%;
  bottom: 2.5%;
  left: 2.5%;
  right: 2.5%;
  margin: auto;
  max-width: 95%;
  max-height: 95%;
}
td.codepoint {
  font-size: 2em;
  text-align: center;
}
table.main td {
  cursor: pointer;
}
td.invalid {
  background: gray;
}

table.main td:hover svg g text.sym-line{
  fill: #337ab7 !important;
}

table.main td:hover {
  color: #337ab7 !important;
}

div.title{
  padding-top: 10px;
}

div#table { 
  padding-top: 10px;
}

table.main, table.sub {
  margin-top: 10px;
}

div.section {
  width: 80%;
  margin: auto;
}

div.section div.btn {
  width: 40%;
  margin: 0 5%;
}
div.nav {
  float: right;
  margin-top: 10px;
  margin-right:12%;
  width: 50%;
}
div.nav div.btn{
  height: 20px;
  margin: 0 auto;
}

div.btn {
  position: relative;
  float: left;
  width: 25%;
  height: 4.5vh;
  margin-left:0%;
  margin-top:1%;
  text-align: center;
  border: 1px solid black;
  -webkit-appearance: none;
  -webkit-border-radius: 0;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  cursor: default;
}
div.topleft {
  position: absolute;
  top: 4%;
  left: 0%;
  width: 7%;
  height: 5vh;
  margin-left:4%;
  margin-top:1%;
  text-align: center;
  border: 1px solid black;
  -webkit-appearance: none;
  -webkit-border-radius: 0;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  cursor: default;
}
div.topright {
  position: absolute;
  top: 4%;
  right: 0%;
  width: 7%;
  height: 5vh;
  margin-right:4%;
  margin-top:1%;
  text-align: center;
  border: 1px solid black;
  -webkit-appearance: none;
  -webkit-border-radius: 0;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  cursor: default;
}
div.topleft.selected, div.topright.selected {
  color: #337ab7;
  background: #c7c7c7;
}
div.topleft a:hover, div.topright a:hover{
  background: #337ab7;
}
div.topright a, div.topleft a {
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
  font-size:3vmin;
  background: gray;
}
div.title {
  float: left;
  text-align: center;
  font-weight: bold;
  width: 38%
}
div.btn.selected{
  color: #337ab7;
  background: #c7c7c7;
}
div.btn:hover{
  background: #e7e7e7;
}
div.btn svg {
  position:absolute;
  top: 0;  
  bottom: 0;  
  left: 0;  
  right: 0; 
  margin:auto;
}
#header div.btn p {
  position: relative;
  margin:auto;
  top: 50%;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
  cursor: default;
  font-size:3vmin;
}

.clearfix:after {
    content:"";
    display:block;
    clear:both;
}