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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

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Insecure Resource

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <meta name="viewport" content="width=device-width, initial-scale=1.0">
<div id="sec1">
  <h1>Lorem ipsum</h1>
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis suscipit consequat elit in auctor. Ut elementum magna sed odio consequat dictum. Curabitur erat odio, sodales non diam sit amet, pretium sagittis sapien. Proin gravida mollis augue nec viverra.
    Morbi id dapibus tellus. Ut posuere lorem sit amet quam feugiat egestas. Phasellus suscipit in nibh non elementum. Aenean ut elementum odio. Nulla facilisi.</p>
</div>
<div id="sec2"><a>Lorem ipsum</a></div>
<div id="sec3">
  <p>Nam gravida tortor in nunc pharetra, ut dignissim sem ultrices. Nulla varius, augue ac consectetur consequat, est magna aliquam arcu, mattis rutrum quam nisl et dui. Vivamus turpis eros, suscipit at euismod a, blandit id nunc. Aliquam ultricies, ligula
    sit amet gravida posuere, eros dui suscipit ligula, vel luctus nisl nisl sit amet dui.</p>
  <p>Nunc vitae mollis ante. Curabitur consectetur fringilla quam, sit amet rhoncus dui ultrices in. Sed interdum enim quis diam pellentesque, a porttitor tortor luctus. Integer interdum finibus bibendum. Donec odio urna, volutpat sed semper quis, semper
    eget mi. Nam vestibulum sagittis elementum. Proin sagittis ligula ac venenatis posuere.</p>
  <p>Etiam faucibus eros hendrerit, viverra ante quis, lacinia erat. Integer lacus nibh, ornare in orci quis, scelerisque sodales justo. Mauris rhoncus neque ut pulvinar tincidunt. Integer odio mi, feugiat sed nisi sed, ornare tempor orci. Maecenas vestibulum
    libero at eros condimentum, sit amet molestie lectus faucibus.</p>
</div>
<div id="sec4"><a>Lorem ipsum</a></div>
!

CSS 

              
                $root-class: 'sec';

$mainColor: lavender;
@import url('https://fonts.googleapis.com/css?family=Abril+Fatface|Alegreya|Indie+Flower|Play|Playfair+Display|Quicksand');
* {
  margin: 0;
  box-sizing: border-box;
  font-family: 'quicksand';
  color: $mainColor;
}

div {
  width: 100%;
  height: 100vh;
  background-repeat: no-repeat;
  background-color: $mainColor;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

##{$root-class}1 {
  background: linear-gradient(to top, $mainColor, mediumpurple, slateblue);
}

##{$root-class}1 > h1 {
  width: 30%;
  text-align: center;
  border-bottom: 2px solid $mainColor;
}
##{$root-class}1 > p {
  padding: 2em 6em;
  text-align: center;
}

##{$root-class}2 {
  background-image: url('http://www.freeppt.net/background/violet-vector-leaves-circles-backgrounds-for-powerpoint.jpg');
  background-attachment: fixed;
  background-position: 0% 50%;
  //box-shadow: inset 0 0 2000px black;
}

##{$root-class}2 > a {
  text-decoration: none;
  padding: 3%;
  color: $mainColor;
  border: 2px solid $mainColor;
  font-size: 1.5em;
  position: relative;
  transition: all 0.2s linear;
  background-color: fade-out(slateblue, 0.5);
  cursor:pointer;
}

##{$root-class}2 > a:before {
  content: '';
  position: absolute;
  width: 108%;
  height: 134%;
  box-shadow: 0 0 0 2px $mainColor;
  top: -17%;
  left: -4%;
  transition: all 0.2s linear;
}

##{$root-class}2 > a:after {
  content: '';
  position: absolute;
  width: 120%;
  height: 116%;
  box-shadow: 0 0 0 2px $mainColor;
  top: -8%;
  left: -10%;
  transition: all 0.2s linear;
}

##{$root-class}2 > a:hover:after {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
##{$root-class}2 > a:hover:before {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

##{$root-class}3 {
  background: linear-gradient(to bottom, $mainColor, orchid, mediumorchid);
  flex-direction: row;
  justify-content: space-around;
}

##{$root-class}3 > p {
  width: 30%;
  font-size: 1.2em;
  text-align: center;
}

##{$root-class}4 {
  background-image: url('http://wallpapersdsc.net/wp-content/uploads/2016/09/Orchid-4K.jpg');
  background-attachment: fixed;
  background-position: 40% 0%;
  //box-shadow: inset 0 0 2000px black;
}

##{$root-class}4 > a {
  text-decoration: none;
  padding: 3%;
  color: $mainColor;
  border: 2px solid $mainColor;
  font-size: 1.5em;
  position: relative;
  transition: all 0.2s linear;
  background-color: fade-out(mediumorchid, 0.5);
  cursor:pointer;
}

##{$root-class}4 > a:before {
  content: '';
  position: absolute;
  width: 108%;
  height: 134%;
  box-shadow: 0 0 0 2px $mainColor;
  top: -17%;
  left: -4%;
  transition: all 0.2s linear;
}

##{$root-class}4 > a:after {
  content: '';
  position: absolute;
  width: 120%;
  height: 116%;
  box-shadow: 0 0 0 2px $mainColor;
  top: -8%;
  left: -10%;
  transition: all 0.2s linear;
}

##{$root-class}4 > a:hover:after {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
##{$root-class}4 > a:hover:before {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

@media screen and (max-width: 38em) {
  ##{$root-class}1 {
    background: slateblue;
  }

  ##{$root-class}2 > a:after {
    display: none;
  }

  ##{$root-class}2 > a:before {
    display: none;
  }

  ##{$root-class}3 {
    background: mediumorchid;
    flex-direction: column;
  }
  ##{$root-class}3 > p {
    width: 100%;
    font-size: 1em;
  }

  ##{$root-class}4 > a:after {
    display: none;
  }

  ##{$root-class}4 > a:before {
    display: none;
  }
}
!

JS
!
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