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Too often as developers, we ignore a crucial last step before launching a website: optimizing for performance . Most developers now recognize that organized, valid code ensures maintainability and compatibility. Anyone who doubts this merely has to speak to a developer who has picked up work on an old website that is littered with unorganized, uncommented spaghetti code. Just as preparing our code to be read by other developers is important, so is preparing our code to be read by browsers. Great web development might start with great organization, but it ends with great optimization.
You better watch out, because the HTML police are about. They scour your code and pick out the most unspeakable crimes against HTML markup. This handy list of ten HTML tag crimes sheds some light on some of the most common coding mistakes and helps provide an alternate solution. Tips include writing valid markup, making semantic choices, avoiding deprecated tags and more! Crime 1: Placing Block Elements Inside Inline Elements HTML elements can either be displayed in two ways, Block or Inline.