Wrapping Code Samples on Mobile Devices

By  on  

One part of being a technical blogger that I've had to come to grips with is code samples and small mobile device screens.  I was amazed when I saw a double-digit percentage of visits to this blog were from mobile phones -- mental!  I started paying more attention to detail on said devices and I realized that code samples required loads of horizontal scrolling:  yuck.  By utilizing CSS white-space, we can make code wrap and avoid arm-numbing scrolling on small screens:

pre {
	white-space: pre-line;
}

I like using PrismJS so that requires a different selector:

pre[class*='language-'], code[class*='language-'] {
	white-space: pre-line;
}

Thankfully white-space lets me help you all avoid horizontal scrolling on mobiles. Of course you'll need to choose which media query you want to apply that to, but I'll let you do that.  In some cases it may be difficult to read the line-broken code, but that's surely better than all that crazy scrolling.

Recent Features

  • By
    5 More HTML5 APIs You Didn’t Know Existed

    The HTML5 revolution has provided us some awesome JavaScript and HTML APIs.  Some are APIs we knew we've needed for years, others are cutting edge mobile and desktop helpers.  Regardless of API strength or purpose, anything to help us better do our job is a...

  • By
    Chris Coyier’s Favorite CodePen Demos

    David asked me if I'd be up for a guest post picking out some of my favorite Pens from CodePen. A daunting task! There are so many! I managed to pick a few though that have blown me away over the past few months. If you...

Incredible Demos

  • By
    CSS Fixed Position Background Image

    Backgrounds have become an integral part of creating a web 2.0-esque website since gradients have become all the rage. If you think gradient backgrounds are too cliche, maybe a fixed position background would work for you? It does provide a neat inherent effect by...

  • By
    jQuery Link Nudge Plugin

    A while back I debuted a tasteful mouseover/mouseout technique called link nudging. It started with a MooTools version and shortly thereafter a jQuery version. Just recently Drew Douglass premiered a jQuery plugin that aimed at producing the same type of effect.

Discussion

  1. I’m also using PrismJS. Any tips to get the line-numbers to adjust?

  2. Also, by default tab size is about 4 i believe, this snippet brings it back a little…

    // @media query here for small screens...
    pre{
          webkit-tab-size: 2;
          -moz-tab-size: 2;
          -ms-tab-size: 2;
          -o-tab-size: 2;
          tab-size: 2;
    }
    

    That is, assuming you’ve got tabs over spaces (which you should of course).

  3. Interesting post. I have thought about this for quite some time. The thing is that code is much more readable, in my opinion, when not wrapping it like this.

    Since we are used to large screens, reading wrapped code like this is hard and unfamiliar. We do not code on small screens and therefor it makes more sense to scroll horizontally when viewing code then to force line breaking/wrapping.

  4. No offense, but I would rather go with all the crazy scrolling. I honestly think it looks nicer than the broken up code, and it is easier to read and understand code samples.

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!