How to optimize layout?

Question

css

How to optimize html and css code? What is shit code, and how to avoid it?

Answer 1

Read about BEM. About preprocessors (both CSS and HTML).
Shitcode - using ID. Creepy cascade. Style repetition. Poor class naming.
Well, for example, a layout laid out entirely in absolute positioning is a star, to put it mildly.
Good layout - if a person who did not make up the site, but knows how, can open the files and fix what he needs, and will not suffer for days in search of a place where to fix it and the layout will not fall apart after the slightest edits.

Answer 2

Very useful

Answer 3

Try using preprocessors such as sass or less for css, jade or haml for html, cofeescript for js, there are a bunch of others
.

Answer 4

I advise you to look PageSpeed

Answer 5

Shit code is writing styles in tags, giving stupid and not informative names to classes, code redundancy.
Code optimization is cross-browser compatibility + code formatting.