![]() Their evaluation of the bug will differ from another developer that doesn’t hold as much CSS knowledge in their head. More correctly what your CSS code is telling the browser to do.ĭevelopers that know these CSS idiosyncrasies recognise the problems that result from them instantly and they are therefore ‘bugs’ that are quick for them to fix. They aren’t actually bugs, merely a developers lack of understanding as to what the browser is doing. ![]() pseudo element not displaying? You probably forgot to add any value in content.absolutely positioned element not appearing or in the wrong place or sat behind something else? You probably haven’t set the position property of the parent or have created a z-index stacking context with a transform or opacity.element not flowing correctly? You probably have a float set somewhere.funny white-space around an image? Set to display: block (an image is inline by default so respects white-space).These are the kind of common CSS pitfalls that any experienced CSS developer would likely know. If CSS isn’t your primary language then there will be fewer of these quick fixes at your immediate disposal. There are many bugs that are simple to fix if CSS is the primary language you work with and/or you therefore have a deep understanding/experience of CSS. We will look at each stage and then work through a quick example CSS problem. If CSS is not the primary language you write, debugging CSS may currently feel like a dark art following this guidance may help you isolate and deal with CSS bugs more effectively.īroadly speaking, I can split the debug process into three stages: ![]() I’m not attempting to tell you this is the way to debug CSS. I found, more often than not, I could reduce the time spent on bugs if a methodical problem solving approach was used. ![]() What became apparent to me as I’ve worked with others, is that many people don’t have a set procedure for debugging CSS. Everything from old versions of Internet Explorer to the latest WebKit nightlies. Mobile platforms and standard desktop browsers. ![]()
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