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The Big Picture: Responsive Images in Action #interactive_cgn

The Big Picture: Responsive Images in Action #interactive_cgn

Although responsive designs are already state-of-the-art in web development the whole trend still is in its infancy. When it comes to images, a lot of responsive websites just load the same big image on every viewport. Because of this, people judge responsive design as being detrimental to performance. New markup elements like are in development right now but what are the alternatives, what is the best to use right now, and how do they work? I will lead you through the different techniques and polyfills and show you their pros and cons. After this talk you should be able to choose the best fitting responsive image solution for your project.

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Matthias Lau

May 24, 2014
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  1. THE BIG PICTURE . responsive images in action PRESENTED BY

    MATTHIAS LAU
  2. { name: "Matthias Lau", link: "http://laumatthias.de", twitter: "@matthiaslau", hometown: {

    name: "Hamburg, Germany" }, bio: "E-Commerce Freak and Web-Allrounder, love coding, awesome internet concepts, Chrome, Web Frameworks, Evernote, the Apple Multi-Touch Trackpad, Bouldering, Wikipedia and Espresso.", }
  3. None
  4. None
  5. A LOT! OPTIMIZED THEY

  6. ! FOR SMALL VIEWPORTS LARGE IMAGES STILL...

  7. YOU´RE JUST DOING IT WRONG RESPONSIVE DESIGN IS NOT SLOW

  8. RESPONSIVE DESIGN RESPONSIBLE

  9. ! WANT! WE WHAT

  10. IMAGES OPTIMIZED

  11. IMAGES OPTIMIZED

  12. IMAGES OPTIMIZED

  13. ! DIRECTION ART

  14. None
  15. None
  16. ! IMAGES FAST

  17. ! JAVASCRIPT IT SHOULD ALSO WORK WITHOUT

  18. CACHING / CDN

  19. <img  src="/img/funny-­‐cat.jpg"> ! CODE SIMPLE

  20. <object  data="data:image/svg+xml,%3Csvg %20viewBox='0%200%20300%20329'%20preserveAspectRatio='xMidYMid %20meet'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EIguazu%20Waterfalls%3C/ title%3E%3Cstyle%3Esvg%7Bbackground-­‐size:100%25%20auto;background-­‐repeat:no-­‐repeat; %7D@media%20screen%20and%20(max-­‐width:300px)%7Bsvg%7Bbackground-­‐image:url(http:// localhost:8010/responsive_images/img/small.jpg);%7D%7D@media%20screen%20and%20(min-­‐ width:301px)%7Bsvg%7Bbackground-­‐image:url(http://localhost:8010/responsive_images/ img/medium.jpg);%7D%7D@media%20screen%20and%20(min-­‐width:601px)%7Bsvg%7Bbackground-­‐ image:url(http://localhost:8010/responsive_images/img/big.jpg);%7D%7D@media%20screen

    %20and%20(min-­‐width:901px)%7Bsvg%7Bbackground-­‐image:url(http://localhost:8010/ responsive_images/img/huge.jpg);%7D%7D%3C/style%3E%3C/svg%3E"  type="image/svg+xml">          <!-­‐-­‐  IE8  fallback  -­‐-­‐>          <!-­‐-­‐[if  lte  IE  8]>          <img  src="../img/medium.jpg"  alt="Iguazu  Waterfalls">          <![endif]-­‐-­‐>   </object> ! ANYMORE SIMPLE NOT
  21. TECHNIQUES RESPONSIVE IMAGE http://matthiaslau.github.io/responsive-images/

  22. SVG´s USE

  23. BACKGROUNDS CSS

  24. BACKGROUNDS CSS #iguazu  {        background-­‐image:  url(small.jpg);  

    }   @media  screen  and  (min-­‐width:  40em)  {        #iguazu  {              background-­‐image:  url(medium.jpg);        }   }
  25. SIMPLE CODE FAST NOJS CACHING / CDN ART DIRECTION

  26. IT IS A CSS IMAGE

  27. <div  id="iguazu"  role="img"  aria-­‐label="Iguazu"></div> ACCESSIBILITY

  28. CARS CLOWN

  29. <img  src="iguazu.svg"  alt="Iguazu  Waterfalls">

  30. <svg  xmlns='http://www.w3.org/2000/svg'>        <title>Iguazu  Waterfalls</title>      

     <style>              @media  screen  and  (min-­‐width:21em){                    svg{                          background-­‐image:url(http:// matthiaslau.github.io/responsive-­‐images/img/medium.jpg);                    }              }              @media  screen  and  (min-­‐width:40em){                    […]              }        </style>   </svg>
  31. <!-­‐-­‐  use  the  object  tag  for  maximal  browser  support  without

      security  drawbacks  -­‐-­‐>   <!-­‐-­‐  put  the  SVG  data  inline  to  prevent  a  second  HTTP   request  -­‐-­‐>   <object  data="data:image/svg+xml,%3Csvg%20viewBox=[…]"   type="image/svg+xml">          <!-­‐-­‐  IE8  fallback  -­‐-­‐>          <!-­‐-­‐[if  lte  IE  8]>          <img  src="medium.jpg"  alt="Iguazu  Waterfalls">          <![endif]-­‐-­‐>   </object>
  32. SIMPLE CODE FAST NOJS CACHING / CDN ART DIRECTION

  33. ADAPTIVE IMAGES RESS / http://adaptive-images.com/

  34. JS Cookie viewport width

  35. .htaccess image request Scaling Logic best fitting image Cookie

  36. SIMPLE CODE FAST NOJS CACHING / CDN ART DIRECTION

  37. RESIZING SERVICES

  38. http://src.sencha.io/320/200/http://[...]/huge-­‐hd.jpg RESIZING SERVICES http://www.sencha.com/learn/how-to-use-src-sencha-io/

  39. <script  src='http://src.sencha.io/screen.js'></script>   ! <img          src='http://src.sencha.io/wiw/http://[...]/huge-­‐

    hd.jpg'          alt='Iguazu  Waterfalls'          /> RESIZING SERVICES
  40. SIMPLE CODE FAST NOJS CACHING / CDN ART DIRECTION

  41. ELEMENT PICTURE SRCSET +

  42. <img  alt="Iguazu"                

       src="medium.jpg"                    srcset="medium.jpg  1x,  medium-­‐2x.jpg  2x">
  43. <picture>          <source  media="(min-­‐width:  40em)"  src="medium.jpg">  

           <!-­‐-­‐  fallback  img  -­‐-­‐>          <img  src="medium.jpg"  alt="Iguazu">   </picture>
  44. <picture>        <source  media="(min-­‐width:  50em)"   srcset="large.jpg  1x,

     large-­‐2x.jpg  2x">          <source  media="(min-­‐width:  40em)"   srcset="medium.jpg  1x,  medium-­‐2x.jpg  2x">          <source  srcset="small.jpg,  small-­‐2x.jpg  2x">          <img  src="small.jpg"  alt="Iguazu">   </picture>
  45. THE FANCY STUFF LET´S DO ALL

  46. VIEWPORT SIZE IS NOT BLOCK SIZE excursion:

  47. None
  48. <picture>      <source          sizes="(max-­‐width:  30em)

     100vw,  (max-­‐width:   50em)  50vw,  calc(33vw  -­‐  100px)"          srcset="xsmall.jpg  100w,  small.jpg  200w,   medium.jpg  400w,  large.jpg  800w,  huge.jpg  1600w,   monster.jpg  3200w">      <img  src="medium.jpg"  alt="Iguazu">   </picture>
  49. <3

  50. SIMPLE CODE FAST NOJS CACHING / CDN ART DIRECTION

  51. NO BROWSER SUPPORT YET

  52. None
  53. None
  54. PICTUREFILL https://github.com/scottjehl/picturefill

  55. SIMPLE CODE FAST NOJS CACHING / CDN ART DIRECTION

  56. MORE THERE IS EVEN HiSRC Foresight.js Riloadr rwdImages Retina.js Responsive

    Enhance Doubletake Content Aware Resizing https://docs.google.com/spreadsheet/ccc?key=0Al0lI17fOl9DdDgxTFVoRzFpV3VCdHk2NTBmdVI2OXc#gid=0 Mobify..js
  57. WHAT? a summary NOW

  58. „Don't click this if on a 3G network, it probably

    take forever, just check it out when you get home.“
  59. SOMETHING USE please

  60. WHERE POSSIBLE CSS IMAGES OTHER PICTUREFILL + SVG´s

  61. None
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  65. CONTEXT-BASED IMAGES forecast:

  66. QUESTIONS? http://twitter.com/matthiaslau http://laumatthias.de/ https://www.xing.com/profile/Matthias_Lau