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              <header>Resize your window to see how it works</header>
<p class="title">This paragraph is #1. Biggest font-size of this document. I'd like to set this paragraph like a title. It looks like an important paragraph, isn't it?</p>

<p class="main-text">Font-size of the main text is smaller than the first paragraph. It needs to be long, so I'll Lorem ipsum here. &ldquo;Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent magna neque, accumsan vitae dignissim ac, eleifend feugiat lectus. In facilisis sapien libero, sed laoreet nisl ornare et. Morbi a massa eget tortor ultricies varius. Donec egestas diam lorem, non aliquam risus tincidunt eu. Sed vitae fringilla nulla. Integer ante leo, mollis at faucibus imperdiet, scelerisque eget purus. Mauris ultricies sodales libero. Etiam lacus tellus, rhoncus et nisl blandit, fringilla eleifend tellus. Aliquam libero justo, eleifend vel tincidunt blandit, pulvinar vel nulla.&rdquo;</p>

<p class="note">Lastly, we need tiny font-sized text here for notes. No need to be long.</p>
            
          
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              // MIXIN FOR RESPONSIBLE TYPOGRAPHY MEDIA QUERY 
@mixin responsive-type($screen-size, $font-size-percent, $operator: 'min-width', $query: 'screen') {
  @media #{$query} and (#{$operator}: #{$screen-size}) {
    font-size: $font-size-percent;
  }
}

// MIXIN FOR GENERATING PX TO REM
@mixin font-size($sizeValue) {
  //  FALLBACK FOR OLD BROWSER
  font-size: $sizeValue + px; 
  // GENERATE REM FROM PX
  font-size: (0.125 / 2 * $sizeValue) + rem;
}

// DEMO
html {
  @include responsive-type(0, 100%);
  @include responsive-type(768px, 120%);
  @include responsive-type(1024px, 150%);
}

body {
  font-family: Neuton, "adobe garamond pro", georgia, serif;
  line-height: 1.5rem;
}
header {
 padding: 16px;
 background: red;
 color: white;
}
p {
  padding: 16px;
}
.title {
  @include font-size(36);
  font-weight: bold;
  line-height: 2.2rem;
}
.main-text {
  @include font-size(16);
}
.note {
  @include font-size(12);
}
            
          
!
999px
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