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High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
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High Performance CSS
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High Performance CSS
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High Performance CSS
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High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
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High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
High Performance CSS
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High Performance CSS

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  • @J Albert Bowden – the biggest problem with shorthand is that it overrides *all* of the properties that it is shorthand for. Testing and comprehension, will catch this out, of course. Where appropriate, the recommendation still stands.
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  • Using shorthand can cause ample problems regarding reflows, resizes and repaints; have you taking this into consideration in your recommendation.?
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  • Gotta love that cover slide!.. got my attention!..
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  • Antony Kennedy
    Worked for BBC, C4, Sky, Disney, Mercedes, Shell, Tescos, Vodafone, Philips, and someone I can’t tell you about (Apple).

  • Most important thing - be consistent. Agree coding styles.
    So, let’s go through them.
  • Most important thing - be consistent. Agree coding styles.
    So, let’s go through them.
  • Most important thing - be consistent. Agree coding styles.
    So, let’s go through them.
  • Most important thing - be consistent. Agree coding styles.
    So, let’s go through them.
  • Most important thing - be consistent. Agree coding styles.
    So, let’s go through them.
  • Naming conventions - pick something that makes sense. Use camel case. Save special characters for special situations.
  • Semantics.
    Don’t use underscore.
    Use hyphens as a separator – namespacing, OOCSS
  • Semantics.
    Don’t use underscore.
    Use hyphens as a separator – namespacing, OOCSS
  • Semantics.
    Don’t use underscore.
    Use hyphens as a separator – namespacing, OOCSS
  • We don’t need things like this.
  • We don’t need things like this.
  • Make your CSS portable, and references shorter
    Google likes hyphens
    Spaces == %20 == work
    Common abbreviations always understandable
  • Make your CSS portable, and references shorter
    Google likes hyphens
    Spaces == %20 == work
    Common abbreviations always understandable
  • Make your CSS portable, and references shorter
    Google likes hyphens
    Spaces == %20 == work
    Common abbreviations always understandable
  • Make your CSS portable, and references shorter
    Google likes hyphens
    Spaces == %20 == work
    Common abbreviations always understandable
  • This huge URL–
  • No quotes. abbreviations. No repetition. Hyphen instead of space.
  • So, let’s go through them.
  • So, let’s go through them.
  • So, let’s go through them.
  • So, let’s go through them.
  • So, let’s go through them.
  • So, let’s go through them.
  • Color can be “black” - easier to read
    top left same as 0 0
    margin can use shorthand, and 0
    background - usse shorthand. color can be shortened
    border can be shortened
    no 0 needed




  • Antony Kennedy
    Run a business called Silver Squid
    Agile Evangelist. Big fan of process. Investigated and experimented with agile processes at several companies and no-one reports bugs properly.
    Worked for BBC, Channel 4, Sky

  • On older computer punch cards were used to store data. No hard drives or magnetic medium. Data was represented as little holes in cards.
    In 1947, Grace Murray Hopper was working on the Harvard University Mark II Aiken Relay Calculator (a primitive computer).
    On the 9th of September, 1947, when the machine was experiencing problems, an investigation showed that there was a moth trapped between the points of Relay #70, in Panel F.
    The word went out that they had "debugged" the machine and the term "debugging a computer program" was born
    In today’s web 2.0 world, we have more complicated software, and more bugs. We have dedicated teams of testers just to find them.
  • What’s a build script?
    Know about gif, svg, png, jpg and the fireworks hack
    Use your tools to compress
    You can use imageoptim a lot of times
    all browsers/servers support gzip
  • What’s a build script?
    Know about gif, svg, png, jpg and the fireworks hack
    Use your tools to compress
    You can use imageoptim a lot of times
    all browsers/servers support gzip
  • What’s a build script?
    Know about gif, svg, png, jpg and the fireworks hack
    Use your tools to compress
    You can use imageoptim a lot of times
    all browsers/servers support gzip
  • What’s a build script?
    Know about gif, svg, png, jpg and the fireworks hack
    Use your tools to compress
    You can use imageoptim a lot of times
    all browsers/servers support gzip
  • What’s a build script?
    Know about gif, svg, png, jpg and the fireworks hack
    Use your tools to compress
    You can use imageoptim a lot of times
    all browsers/servers support gzip
  • What’s a build script?
    Know about gif, svg, png, jpg and the fireworks hack
    Use your tools to compress
    You can use imageoptim a lot of times
    all browsers/servers support gzip
  • It’s ugly. but it’s tiny. only for prod.

  • So, let’s go through them.
  • So, let’s go through them.
  • So, let’s go through them.
  • So, let’s go through them.
  • So, let’s go through them.
  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe






  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe
  • BBC’s ID cookie big enough to map all particles in the known universe
  • So, let’s go through them.
  • So, let’s go through them.
  • So, let’s go through them.
  • So, let’s go through them.
  • So, let’s go through them.
  • Slides will be on my blog later. Questions?

  • ×