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HTML

              
                <body class="home" id="show-grid">

  <ul class="display-controls">
    <li class="toggle-grid-wrap">
      <a href="#show-grid" class="toggle-grid toggle-grid-on">Show Grid</a>
      <a href="#" class="toggle-grid toggle-grid-off">Hide Grid</a>
    </li>
  </ul>

  <div class="container">
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>
    <p>Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <h1>Heading Level One</h1>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <h2>Heading Level Two</h2>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <h3>Heading Level Three</h3>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <h4>Heading Level Four</h4>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <h5>Heading Level Five</h5>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <h6>Heading Level Six</h6>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <figure class="blockquote">
      <blockquote>I don't believe I'll ever get credit for anything I do in foreign affairs, no matter how successful it is, because I didn't go to Harvard.</blockquote>
      <figcaption>Lyndon B. Johnson</figcaption>
    </figure>
    <ol>
      <li>Ordered List</li>
      <li>List Item</li>
      <li>List Item</li>
      <li>List Item</li>
      <li>List Item</li>
    </ol>
    <ul>
      <li>Unordered List</li>
      <li>List Item</li>
      <li>List Item</li>
      <li>List Item</li>
      <li>List Item</li>
    </ul>
    <ul class="inline-list">
      <li>List Item</li>
      <li>List Item</li>
      <li>List Item</li>
      <li>List Item</li>
    </ul>
    <p>This sentence has an abbreviation in it: <abbr title="Hyper Text Markup Language">HTML</abbr>.</p>
    <p>Today is the 2<sup>nd</sup> of May. (superscript)</p>
    <p>H<sub>2</sub>O is the chemical formula for water. (subscript)</p>
    <hr /><!-- a horizontal rule, if you're into that sort of thing -->
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-12">Text Scale Up 12 (84px / 84px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-11">Text Scale Up 11 (77px / 84px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-10">Text Scale Up 10 (63px / 70px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-9">Text Scale Up 9 (55px / 56px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-8">Text Scale Up 8 (48px / 56px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-7">Text Scale Up 7 (42px / 42px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-6">Text Scale Up 6 (36px / 42px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-5">Text Scale Up 5 (32px / 42px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-4">Text Scale Up 4 (28px / 28px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-3">Text Scale Up 3 (24px / 28px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-2">Text Scale Up 2 (21px / 28px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-up-1">Text Scale Up 1 (18px / 28px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-base">Text Scale Base (16px / 28px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-down-1">Text Scale Down 1 (14px / 14px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <div class="txt-down-2">Text Scale Down 2 (12px / 14px)</div>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
  </div><!-- end of div.container -->

</body>
              
            
!

CSS

              
                // Variables ================================================================ //
// ========================================================================== //
$txt-color:         #5e5e5e;
$txt-link-color:    #a51c30;
$txt-accent-color:  #bac5c6;

// Scale : http://spencermortensen.com/articles/typographic-scale/ ========== //
$txt-up-12:  5.25;   // 84px
$txt-up-11:  4.8125; // 77px
$txt-up-10:  3.9375; // 63px
$txt-up-9:   3.4375; // 55px
$txt-up-8:   3;      // 48px
$txt-up-7:   2.625;  // 42px
$txt-up-6:   2.25;   // 36px
$txt-up-5:   2;      // 32px
$txt-up-4:   1.75;   // 28px
$txt-up-3:   1.5;    // 24px
$txt-up-2:   1.3125; // 21px
$txt-up-1:   1.125;  // 18px
$txt-base:   1;      // 16px
$txt-down-1: 0.875;  // 14px
$txt-down-2: 0.75;   // 12px

$base-line-height: $txt-up-4;
$vertical-measure: $txt-down-1; // 14px for finer line-height adjustment
// ========================================================================== //



// Type Scale =============================================================== //
// ========================================================================== //
@mixin txt-up-12($vm: "") { // 84px/84px
  font-size: #{$txt-up-12}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1;
    padding: 0.4375rem 0 1.3125rem 0;
  }
}

@mixin txt-up-11($vm: "") { // 77px/84px
  font-size: #{$txt-up-11}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1.1;
    padding: 0.5625rem 0 1.1875rem 0;
  }
}

@mixin txt-up-10($vm: "") { // 63px/70px
  font-size: #{$txt-up-10}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1.12;
    padding: 0.4375rem 0 0.4375rem 0;
  }
}

@mixin txt-up-9($vm: "") { // 55px/56px
  font-size: #{$txt-up-9}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1.02;
    padding: 0.125rem 0 0.75rem 0;
  }
}

@mixin txt-up-8($vm: "") { // 48px/56px
  font-size: #{$txt-up-8}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1.17;
    padding: 0.25rem 0 0.625rem 0;
  }
}

@mixin txt-up-7($vm: "") { // 42px/42px
  font-size: #{$txt-up-7}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1;
    padding: 0.8125rem 0 0.9375rem 0;
  }
}

@mixin txt-up-6($vm: "") { // 36px/42px
  font-size: #{$txt-up-6}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1.16667;
    padding: 0.0625rem 0 0.8125rem 0;
  }
}

@mixin txt-up-5($vm: "") { // 32px/42px
  font-size: #{$txt-up-5}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1.3125;
    padding: 0.125rem 0 0.75rem 0;
  }
}

@mixin txt-up-4($vm: "") { // 28px/28px
  font-size: #{$txt-up-4}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1.5;
    padding: 0.25rem 0 0.625rem 0;
  }
}

@mixin txt-up-3($vm: "") { // 24px/28px
  font-size: #{$txt-up-3}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1.17;
    padding: 0.75rem 0 1rem 0;
  }
}

@mixin txt-up-2($vm: "") { // 21px/28px
  font-size: #{$txt-up-2}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1.35;
    padding: 0.8125rem 0 0.9375rem 0;
  }
}

@mixin txt-up-1($vm: "") { // 18px/28px
  font-size: #{$txt-up-1}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 1.56;
    padding: 0rem 0 0.875rem 0;
  }
}

@mixin txt-base($vm: "") { // 16px/28px
  font-size: #{$txt-base}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: $base-line-height;
    padding: 0rem 0 0.875rem 0;
  }
}

@mixin txt-down-1($vm: "") { // 14px/28px
  font-size: #{$txt-down-1}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 2;
    padding: 0.0625rem 0 0.8125rem 0;
  }
}

@mixin txt-down-2($vm: "") { // 12px/14px
  font-size: #{$txt-down-2}rem;
  @if $vm == "vm" { // add baseline grid vertical metrics
    line-height: 2.35;
    padding: 0.125rem 0 0.75rem 0;
  }
}
// ========================================================================== //



/* Base ===================================================================== */
/* ========================================================================== */
* {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}

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

body {
  font-family: 'Merriweather', 'Times New Roman', serif;
  font-weight: 300;
  font-size: 100%;
  color: $txt-color;
  -webkit-font-feature-settings: 'liga' 1, 'onum' 1;
       -o-font-feature-settings: 'liga' 1, 'onum' 1;
     -moz-font-feature-settings: 'liga' 1, 'onum' 1;
      -ms-font-feature-settings: 'liga' 1, 'onum' 1;
          font-feature-settings: 'liga' 1, 'onum' 1;
}

.container {
  width: 100%;
  max-width: 39em; /* 624px */
  padding: 9px 1rem 0 1rem; /* top padding is just to demo baseline grid */
  position: relative;
}
/* ========================================================================== */



/* Typography =============================================================== */
/* ========================================================================== */
p {
  margin: 0;
  padding: 0 0 #{$vertical-measure * 2}rem 0; /* 28px */
  line-height: $base-line-height; /* 28px */
  -webkit-hyphens: auto;
     -moz-hyphens: auto;
      -ms-hyphens: auto;
          hyphens: auto;
}

h1, .txt-h1,
h2, .txt-h2,
h3, .txt-h3,
h4, .txt-h4,
h5, .txt-h5,
h6, .txt-h6, {
  margin: 0;
  font-style: normal;
}

h1, .txt-h1,
h2, .txt-h2,
h3, .txt-h3,
h6, .txt-h6, {
  font-family: 'Merriweather', 'Times New Roman', serif;
}

h4, .txt-h4,
h5, .txt-h5, {
  font-family: 'Merriweather Sans', Arial, sans-serif;
}

h1, .txt-h1 {
  font-weight: 300;
  @include txt-up-8(vm);
}

h2, .txt-h2 {
  font-weight: 400;
  @include txt-up-5(vm);
}

h3, .txt-h3 {
  font-weight: 700;
  @include txt-up-2(vm);
}

h4, .txt-h4 {
  font-weight: 700;
  @include txt-up-1(vm);
}

h5, .txt-h5 {
  font-weight: 700;
  @include txt-base(vm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

h6, .txt-h6 {
  font-weight: 400;
  @include txt-base(vm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

cite {
  font-style: normal;
}

small {
  font-size: 80%;
}

a {
  color: rgba($txt-link-color, 1);
  text-decoration: none;
  border-bottom: 2px solid rgba($txt-link-color, .3);
  transition: all 0.2s linear;
}

a:hover {
  color: rgba($txt-link-color, 1);
  border-bottom: 2px solid rgba($txt-link-color, .8);
}

a:focus {
  outline: thin dotted;
}

a:active,
a:hover {
  outline: 0;
}

ul, ol {
  margin: 0;
  padding: 0 0 #{$vertical-measure * 2}rem 1.5rem;
}

li {
  line-height: $base-line-height;
}

ul ul, ul ol, ol ol, ol ul {
  padding-bottom: 0;
}

.inline-list {
  padding-left: 0;
}

hr {
  border: 0;
  border-top: 1px solid rgba($txt-color, 0.4);
  border-bottom: 1px solid transparent;
  margin: 1.125rem 0 1.375rem 0; /* get on baseline grid */
}

abbr[title] {
  cursor: help;
  border-bottom: 1px dotted $txt-color;
  text-decoration: none;
}

sub,sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sup {
  top: -.5em;
}

sub {
  bottom: -.25em;
}

.inline-list > li {
  zoom: 1;
  display: inline;
  vertical-align: auto;
  margin-left: .5rem;
  margin-right: .5rem;
}

.inline-list li:first-child {
  margin-left: 0;
}

.inline-list li:last-child {
  margin-right: 0;
}

.blockquote { // apply to a <figure> wrapping a <blockquote>
  font-weight: 300;
  font-style: italic;
  padding: 0.25rem 0 0.875rem 0;
  margin: 0;
  position: relative;

  &:before {
    content: '\0022';
    font-size: 36px;
    color: $txt-accent-color;
    background-color: #fff;
    position: absolute;
    top: -7px; left: 0;
    height: 20px;
    width: 24px;
  }

  blockquote {
    @include txt-up-3();
    // include vertical metrics manually to adjust for 1px difference
    line-height: 1.75;
    padding: 0.54167em 0 0.58333em 0;
    border: 1px solid $txt-accent-color;
    border-width: 1px 0;
    margin: 0;
  }

  figcaption {
    font-weight: 300;
    @include txt-up-1();
    padding: 0.55556em 0 1em 0;

    cite {
      font-weight: 300;
      font-style: italic;
    }

    &:before,
    &:after {
      content: '\2014';
    }
  }
}
/* ========================================================================== */



/* Demo stuff =============================================================== */
/* ========================================================================== */
body {
  padding: 4em 1em;
}

.display-controls {
  list-style-type: none;
  position: absolute;
  top: 10px;
  left: 10px;
  opacity: .5;
  transition: opacity 0.2s ease-in-out;

  &:hover {
    opacity: 1;
  }

  li {
    margin: 0;
    padding: 0;
    display: inline-block;
  }
}

#show-grid:target .container {
  background-image: linear-gradient(transparent 90%, rgba(0, 0, 255, 0.3) 100%);
  background-size: 100% 14px;
}

.toggle-grid-on {
  display: block;
}

#show-grid:target .toggle-grid-on {
  display: none;
}

.toggle-grid-off {
  display: none;
}

#show-grid:target .toggle-grid-off {
  display: block;
}

.txt-up-12 {  @include txt-up-12(vm); }
.txt-up-11 {  @include txt-up-11(vm); }
.txt-up-10 {  @include txt-up-10(vm); }
.txt-up-9 {   @include txt-up-9(vm); }
.txt-up-8 {   @include txt-up-8(vm); }
.txt-up-7 {   @include txt-up-7(vm); }
.txt-up-6 {   @include txt-up-6(vm); }
.txt-up-5 {   @include txt-up-5(vm); }
.txt-up-4 {   @include txt-up-4(vm); }
.txt-up-3 {   @include txt-up-3(vm); }
.txt-up-2 {   @include txt-up-2(vm); }
.txt-up-1 {   @include txt-up-1(vm); }
.txt-base {   @include txt-base(vm); }
.txt-down-1 { @include txt-down-1(vm); }
.txt-down-2 { @include txt-down-2(vm); }

.txt-up-12,
.txt-up-11,
.txt-up-10,
.txt-up-9,
.txt-up-8,
.txt-up-7,
.txt-up-6,
.txt-up-5,
.txt-up-4,
.txt-up-3,
.txt-up-2,
.txt-up-1,
.txt-base,
.txt-down-1,
.txt-down-2 {
  white-space: nowrap;
}
/* ========================================================================== */
              
            
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999px

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