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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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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-.

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About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.

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You're using npm packages, so we've auto-selected Babel for you here, which we require to process imports and make it all work. If you need to use a different JavaScript preprocessor, remove the packages in the npm tab.

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You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

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HTML

            
              <h1 class="title">Full Width Image with calc()</h1>
<p class="description">Break out of a parent container using <a  href="https://developer.mozilla.org/en-US/docs/Web/CSS/calc">calc()</a>.</p>

<div class="wrap">
  
  <section class="content-section">
    
    <header>
      <h1>This image is full-width, even though the parent container has padding.</h1>
    </header>
    
    <article>
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed quid minus probandum quam esse aliquem beatum nec satis beatum? Maximas vero virtutes iacere omnis necesse est voluptate dominante. Mihi enim erit isdem istis fortasse iam utendum. Istam voluptatem, inquit, Epicurus ignorat? Quae in controversiam veniunt, de iis, si placet, disseramus. Duo Reges: constructio interrete. Rhetorice igitur, inquam, nos mavis quam dialectice disputare? Sed virtutem ipsam inchoavit, nihil amplius. </p>      
      <img src="https://unsplash.it/1200/600" class="full-width">
      
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed quid minus probandum quam esse aliquem beatum nec satis beatum? Maximas vero virtutes iacere omnis necesse est voluptate dominante. Mihi enim erit isdem istis fortasse iam utendum. Istam voluptatem, inquit, Epicurus ignorat? Quae in controversiam veniunt, de iis, si placet, disseramus. Duo Reges: constructio interrete. Rhetorice igitur, inquam, nos mavis quam dialectice disputare? Sed virtutem ipsam inchoavit, nihil amplius. </p>
      
      <img src="https://unsplash.it/300/200" class="alignleft">
      
      <p>Aliter enim explicari, quod quaeritur, non potest. Nam ista vestra: Si gravis, brevis; Hoc ipsum elegantius poni meliusque potuit. At multis se probavit. Si est nihil nisi corpus, summa erunt illa: valitudo, vacuitas doloris, pulchritudo, cetera. Nam Pyrrho, Aristo, Erillus iam diu abiecti. </p>
      <p>Sed haec omittamus; Quorum altera prosunt, nocent altera. Et nemo nimium beatus est; </p>
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed quid minus probandum quam esse aliquem beatum nec satis beatum? Maximas vero virtutes iacere omnis necesse est voluptate dominante. Mihi enim erit isdem istis fortasse iam utendum. Istam voluptatem, inquit, Epicurus ignorat? Quae in controversiam veniunt, de iis, si placet, disseramus. Duo Reges: constructio interrete. Rhetorice igitur, inquam, nos mavis quam dialectice disputare? Sed virtutem ipsam inchoavit, nihil amplius. </p>

      <img src="https://unsplash.it/300/200" class="alignright">
      
      <p>Deinde dolorem quem maximum? Ita enim vivunt quidam, ut eorum vita refellatur oratio. Si mala non sunt, iacet omnis ratio Peripateticorum. Hoc dictum in una re latissime patet, ut in omnibus factis re, non teste moveamur. Tubulum fuisse, qua illum, cuius is condemnatus est rogatione, P. Sed haec quidem liberius ab eo dicuntur et saepius. Omnium enim rerum principia parva sunt, sed suis progressionibus usa augentur nec sine causa; Sic enim censent, oportunitatis esse beate vivere. Illa tamen simplicia, vestra versuta. </p>
      <p>Aliter enim explicari, quod quaeritur, non potest. Nam ista vestra: Si gravis, brevis; Hoc ipsum elegantius poni meliusque potuit. At multis se probavit. Si est nihil nisi corpus, summa erunt illa: valitudo, vacuitas doloris, pulchritudo, cetera. Nam Pyrrho, Aristo, Erillus iam diu abiecti. </p>
    </article>
    
    <footer>
    </footer>
  
  </section>
  
</div><!-- .wrap -->
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CSS

            
              .wrap {
    margin: 0 auto;
    max-width: 960px;
    padding: 0 48px;
}

.content-section {
    background-color: #fff;
    margin-bottom: 48px;
    padding: 48px;
    position: relative;
  
  h1 {
      margin-bottom: 48px;
      text-align: center;
  }
}

.full-width {
    position: relative;
    left: -48px;
    width: calc(100% + 96px); // Each gutter is 48px. 48 * 2 = 96
}

// Design stuff for this pen (ignore me)
body { background: #333; color: #333; font-family: sans-serif;	text-align: left; } .title { text-align: center; margin-bottom: 0; color: #fff; text-shadow: 1px 1px 0 #000; } .description { text-align: center; margin-bottom: rem(48); color: #fff; text-shadow: 1px 1px 0 #000; } .alignleft { text-align: left; float: left; margin: 24px 24px 24px 0; } .alignright { text-align: right; float: right; margin: 24px 0 24px 24px; }
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JS
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