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Adam Norris edited this page Jul 2, 2016 · 21 revisions

The HTML5 doctype should be declared as the first line of the document

<!DOCTYPE html>

HTML5 tags should be used (where appropriate), to reflect the semantic content of the document. See W3 Wiki.

<!-- Example of HTML5 tags -->
<article>
  <header>
    <h1>What Does WWF Do?</h1>
    <p>WWF's mission:</p>
  </header>
  <p>WWF's mission is to stop the degradation of our planet's natural environment,
  and build a future in which humans live in harmony with nature.</p>
</article>

All tags and attributes should be written in lowercase

Quote style should be consistent across the document. Double quotes are preferred. See Google style guide

<!-- Bad -->
<img class="hero-image" src='../img/hero-image'>

<!-- Better -->
<img class="hero-image" src="../img/hero-image">

HTML should be properly indented (including any PHP blocks)

Comments should be used to help developers navigate through the markup

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