The Wonderful World of Bugs

The Wonderful World of Bugs by Andy Budd of Clearleft.com 1

Hacks by Andy Budd of Clearleft.com 2

How many people feel they use too many hacks? and how many people feel that use too few? by Andy Budd of Clearleft.com 3

Hacks have been given a bad name… …literally by Andy Budd of Clearleft.com 4

Wouldn’t be here today if it wasn’t for CSS hacks by Andy Budd of Clearleft.com 5

Sadly, hacks have become synonymous with CSS by Andy Budd of Clearleft.com 6

It doesn’t have to be this way… by Andy Budd of Clearleft.com 7

Bug Fixing by Andy Budd of Clearleft.com 8

Browsers are buggy… …but not as buggy as we’d like to think by Andy Budd of Clearleft.com 9

Bugs come from lots of places •Syntactic errors •Speciﬁcity clashes •Overly complicated code •Browser bugs •Incomplete understanding of the CSS speciﬁcation by Andy Budd of Clearleft.com 10

Andy’s ﬁrst law of bug ﬁxing… …keep it simple (stupid) by Andy Budd of Clearleft.com 11

Andy’s second law of bug ﬁxing… …always assume it’s your fault by Andy Budd of Clearleft.com 12

Andy’s third law of bug ﬁxing… …prevention is better than cure by Andy Budd of Clearleft.com 13

Andy’s fourth law of bug ﬁxing… …offence is the best form of defence by Andy Budd of Clearleft.com 14

Andy’s ﬁfth law of bug ﬁxing… …isolate the problem by Andy Budd of Clearleft.com 15

Andy’s sixth law of bug ﬁxing… …use hacks only as a last resort by Andy Budd of Clearleft.com 16

Using Hacks Sensibly by Andy Budd of Clearleft.com 17

Types of Hack •Hacks that rely on parsing bugs •Hacks that rely on unsupported or misinterpreted CSS by Andy Budd of Clearleft.com 18

Good hacks… • Are valid • Only target older browsers • Are ugly? by Andy Budd of Clearleft.com 19

Responsible hacking • Use hacks sparingly • Only add a small number of hacks to your main CSS • Better to ﬁlter hacks into separate stylesheets • Always comment your hacks by Andy Budd of Clearleft.com 20

Questions? by Andy Budd of Clearleft.com 21

Thanks you! http://www.andybudd.com/atmedia06 by Andy Budd of Clearleft.com 22

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The Wonderful World of Bugs

by Andy Budd on Jun 05, 2008

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The Wonderful World of Bugs — Presentation Transcript