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HTML

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CSS

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JavaScript

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HTML 

              
                <div class="version">
  <h2>SignWriting Character Viewer v1</h2>
  <a href="https://slevinski.github.io/SignWriting_Character_Viewer/SignWriting_Character_Viewer.html"  target="_blank">
    Symbol Key names with plane 16 codepoints
    <br>Based on Private Use Area codepoints
    <br>100,000 ligatures to support ASCII, Unicode 8, and Plane 15
  </a>
</div>

<div class="version">
  <h2>SignWriting Character Viewer v2</h2>
  <a href="https://slevinski.github.io/SignWriting_Character_Viewer/SignWriting_Character_Viewer_2.html" target="_blank">
    Symbol Key names with plane 4 codepoints
    <br>No private use area and no ligatures
    <br>Proposed for Unicode 10
  </a>
</div>

<div>
  <p>Formal SignWriting</p>
  <input type="fsw" class="form-control" id="fsw" placeholder="enter Formal SignWriting" oninput="fswChange();" value="M528x518S15a07472x487S1f010490x503S26507515x483 M516x515S1e020493x485S21901485x493 S38800464x496 R518x518S2ff00482x483S15a10494x432S22a04494x464S32107482x483 S38700463x496 M571x518S32107482x483S15a37548x494S15a37522x494 M543x546S15008457x503S15000518x503S34400482x483S26a16484x519S26a02502x519 M521x518S2ff00482x483S10612495x457S22f04488x477 S38700463x496 R571x518S32107482x483S15a37548x494S15a37522x494 R534x532S14c30508x468S14c38468x468S2a204511x504S2a21c466x504 R510x537S20302494x463S2030a490x480S20340495x505S20348490x522 R526x548S30124482x477S26500512x519S10010486x518 M527x524S18741490x477S18706498x501S2e834474x492 M526x536S15a50474x465S15a31479x513S24103494x482 M541x518S2ff00482x483S15a11518x485 M571x518S32107482x483S15a37548x494S15a37522x494 M524x525S26501482x476S14c19477x496S15a01501x502 M538x529S22a14484x500S1150a463x472S20500485x518S20500504x518S20500486x486S20500504x485S22a04502x500S11502508x472 M521x518S2ff00482x483S10612495x457S22f04488x477 S38900464x493 L528x534S1ce40506x472S1ce48473x494S2b711481x467S2c604499x508 L544x516S18217519x485S1821f465x485S20500456x505S2d600487x488S20500534x505 L546x518S2ff00482x483S19a10518x469S19a18453x471S22f03508x484S22f15470x486 L554x518S2ff00482x483S1ce17527x491S26b00523x469 M571x518S32107482x483S15a37548x494S15a37522x494 M521x524S1150a491x509S11520506x476S2e50c479x479 M540x520S10011519x490S2ff00482x483S2df08518x462 M551x524S20337504x482S20331476x484S3770b488x497S37713490x498S2891f451x497S28907525x497S20326536x478S20326450x477 M529x538S2e74c472x513S14220498x462S2e700514x497S14228471x478 M518x534S1e141470x506S34600482x483S2ff00482x483 M538x568S2ff00482x483S10011517x488S22a04518x525S15d39493x542S15d51501x545 S38800464x496">
  <br>
  <input type="button" class="form-control" id="dozenhours"  onclick="cssChange();" value="CSS" />
  <input type="range" class="form-control" id="zoom" oninput="zoomChange();" value="30" min="0" max="100" />
</div>

<div id="signtext" class="signtext"></div>
!

CSS 

              
                  div.version {
    float: left;
    width: 50%;
    text-align: center;
    padding-bottom: 3%;
  }

  @font-face {
    font-family: "SignWriting 2010";
    src: 
      local('SignWriting 2010'),
      local('SignWriting_2010'),
      url('https://cdn.rawgit.com/Slevinski/signwriting_2010_fonts/master/fonts/SignWriting%202010.ttf') format('truetype');
  }
  @font-face {
    font-family: "SignWriting 2010 Filling";
    src: 
      local('SignWriting 2010 Filling'),
      local('SignWriting_2010_Filling'),
      url('https://cdn.rawgit.com/Slevinski/signwriting_2010_fonts/master/fonts/SignWriting%202010%20Filling.ttf') format('truetype');
  }
  svg {
    overflow: visible !important;
  }
  div.signtext {
    -webkit-writing-mode: vertical-lr;
    -moz-writing-mode: vertical-lr;
    -ms-writing-mode: tb-lr;
    writing-mode: vertical-lr;
    font-size: 0%;
    border-left: 1px solid blue;
    height: 93%;
  }
  div#signtext {
    transform-origin: top left;
    -ms-transform-origin: top left;
    -moz-transform-origin: top left;
    -webkit-transform-origin: top left;
    bottom': '0';
    right': '0';
    overflow: hidden;
    background-color: white;
  }
  span.outside {
    border-left: 1px solid blue;
    vertical-align: top;
  }

  span.middle {
    vertical-align: bottom;
  }

  span.inside {
    border-left: 1px dashed transparent;
  }

  div.sign {
    writing-mode: horizontal-tb;
    display: inline-block;
    vertical-align: middle;
    padding: 20px;
  }
  #fsw {
    width:98%;
    margin-bottom: 1%;
  }
  #zoom {
    width: 88%;
    valign: top;
    margin-bottom: 1%;
    display: inline-block;
    vertical-align: top;
  }

  #dozenhours {
    width: 7%;
    valign: top;
    display: inline-block;
    vertical-align: top;
  }

  div#signtext.midnight {
    background-color: black;
  }
  
  div#signtext.midnight div.sign svg g text.sym-line {
    fill: white !important;
  }

  div#signtext.midnight div.sign svg g text.sym-fill {
    fill: black !important;
  }

  div#signtext.midnight {
    border-left: 1px solid yellow;
  }

  div#signtext.midnight span.outside {
    border-left: 1px solid yellow;
  }

  div#signtext.midnight span.inside {
    border-left: 1px dashed white;
  }
!

JS 

              
                function zoomChange() {
  document.getElementById("zoom").scrollIntoView();
  var zoom =  (2.5*document.getElementById("zoom").value+25);
//  if (document.getElementById("signtext").style.zoom) {
//    document.getElementById("signtext").style.zoom = zoom + "%";
//  } else {
    var height = zoom*.98;
    height = (100/zoom) * 98;
    document.getElementById("signtext").style.height = height + "%";
    zoom = zoom/100;
    document.getElementById("signtext").style.transform = 'scale(' + zoom + ')';
//  }
}

function fswChange(){
  var signtext = document.getElementById("fsw").value;
  var signs = sw10.signtext(signtext).map(function(fsw) {
    var bbox = sw10.bbox(fsw).split(' ');
    var w = bbox[1]-bbox[0];
    var h = bbox[3]-bbox[2];
    var adj = 1000 - bbox[0] - bbox[1];
    adj += 2; //adjust for center dotted line
    if (fsw.indexOf('L')>-1) adj += 150;
    if (fsw.indexOf('R')>-1) adj -= 150;
    var style = 'width: ' + w + 'px;height: ' + h + 'px;'
    if (adj>0) {
      style += 'margin-right: ' + adj + 'px;'
    } else if (adj<0) {
      adj = -adj;
      style += 'border-left: ' + adj + 'px solid transparent;';
    }
    return '<div class="sign" style="' + style + '">' + sw10.svg(fsw + '-C') + '</div>';
  });
  document.getElementById("signtext").innerHTML = '<span class="outside"><span class="middle"><span class="inside">' + signs.join('') + '</span></span></span>';
}

function cssChange(){
  //document.getElementById("zoom").scrollIntoView();
  document.getElementById("signtext").classList.toggle("midnight")
}

fswChange();
!
999px

Console