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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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About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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Insecure Resource

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CSS

About CSS Preprocessors

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.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

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JavaScript

About JavaScript Preprocessors

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

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Babel includes JSX processing.

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HTML 

              
                <div class="container">
  <div class="text-intro">
    <h1>Smooth Scrolling With CSS</h1>
    <p>Click on the countries to see the effect</p>
  </div>
  <header class="page-header">
    <nav>
      <ul>
        <li>
          <a href="#portugal">Portugal</a>
        </li>
        <li>
          <a href="#croatia">Croatia</a>
        </li>
        <li>
          <a href="#malta">Malta</a>
        </li>
        <li>
          <a href="#norway">Norway</a>
        </li>
      </ul>
    </nav>
    <div class="header-text">
      Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It comprises the westernmost part of Eurasia and is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east.
    </div>
  </header>
</div>
<section class="section" id="portugal">
  <div class="container">
    <h2>Portugal</h2>
    <div class="section-text">
      Portugal, officially the Portuguese Republic, is a country located mostly on the Iberian Peninsula, in southwestern Europe. It is the westernmost sovereign state of mainland Europe, being bordered to the west and south by the Atlantic Ocean and to the north and east by Spain. Its territory also includes the Atlantic archipelagos of the Azores and Madeira, both autonomous regions with their own regional governments.
    </div>
    <a href="https://en.wikipedia.org/wiki/Portugal" class="section-btn" target="_blank">
      Learn More →
    </a>
  </div>
</section>
<section class="section" id="croatia">
  <div class="container">
    <h2>Croatia</h2>
    <div class="section-text">
      Croatia, officially the Republic of Croatia, is a country in Southeast Europe. It borders Slovenia to the northwest, Hungary to the northeast, Serbia to the east, Bosnia and Herzegovina, and Montenegro to the southeast, sharing a maritime border with Italy. Its capital, Zagreb, forms one of the country's primary subdivisions, along with twenty counties. Croatia has an area of 56,594 square kilometres (21,851 square miles) and a population of 4.28 million, most of whom are Roman Catholics.
    </div>
    <a href="https://en.wikipedia.org/wiki/Croatia" class="section-btn" target="_blank">
      Learn More →
    </a>
  </div>
</section>
<section class="section" id="malta">
  <div class="container">
    <h2>Malta</h2>
    <div class="section-text">
      Malta, officially known as the Republic of Malta and formerly Melita, is a Southern European island country consisting of an archipelago in the Mediterranean Sea. It lies 80 km (50 mi) south of Italy, 284 km (176 mi) east of Tunisia, and 333 km (207 mi) north of Libya. With a population of about 475,000 over an area of 316 km2 (122 sq mi), Malta is the world's tenth smallest country in area and fifth most densely populated sovereign country. Its capital is Valletta, which is the smallest national capital in the European Union by area at 0.8 km2 (0.31 sq mi).
    </div>
    <a href="https://en.wikipedia.org/wiki/Malta" class="section-btn" target="_blank">
      Learn More →
    </a>
  </div>
</section>
<section class="section" id="norway">
  <div class="container">
    <h2>Norway</h2>
    <div class="section-text">
      Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe whose mainland territory comprises the western and northernmost portion of the Scandinavian Peninsula; Mainland Norway and the remote island of Jan Mayen as well as the archipelago of Svalbard form Metropolitan Norway. The subantarctic Bouvet Island is a dependent territory of the Kingdom of Norway. Norway also lays claim to the Antarctic territories of Queen Maud Land and Peter I Island.
    </div>
    <a href="https://en.wikipedia.org/wiki/Norway" class="section-btn" target="_blank">
      Learn More →
    </a>
  </div>
</section>
<footer class="page-footer">
  <p>
    <small>Text from <a href="https://en.wikipedia.org/" target="_blank">Wikipedia</a>
    </small>
  </p>
  <p>
    <small>Made with <span>❤</span> by <a href="https://georgemartsoukos.com/" target="_blank">George Martsoukos</a>
    </small>
  </p>
</footer>
!

CSS 

              
                /* RESET RULES
–––––––––––––––––––––––––––––––––––––––––––––––––– */
:root {
  --black: #181818;
  --beige: #F6EEE2;
  --red: #e74c3c;
}

html {
  scroll-behavior: smooth;  
}

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

ul {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

body {
  font: 20px/30px sans-serif;
}

.container {
  max-width: 1100px;
  padding: 0 15px;
  margin: 0 auto;
}

.text-intro {
  text-align: center;
  margin: 10vh 0;
  padding: 0 15px;
}

h1 {
  font-size: 30px;
  line-height: normal;
  margin-top: 10px;
}

.page-header {
  display: grid;
  grid-column-gap: 30px;
  grid-template-columns: 1fr 3fr;
  padding: 40px 0;
  border-top: 1px solid;
  border-bottom: 1px solid;
  margin-bottom: 150px;
}

.header-text {
  font-weight: bold;
}

.section {
  padding: 150px 0;
}

.section:nth-of-type(1),
.section:nth-of-type(3),
.page-footer {
  background: var(--beige);
}

.section-text {
  margin: 50px 0;
  max-width: 800px;
}

.section-btn {
  display: inline-block;
  color: var(--beige);
  background: var(--black);
  min-width: 200px;
  height: 50px;
  padding: 9px 40px;
  text-align: center;
}


/* FOOTER
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.page-footer {
  font-size: 16px;
  line-height: normal;
  text-align: center;
  padding: 15px;
}

.page-footer span {
  color: var(--red);
}
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JS
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999px

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