CSS Master

Figure 3.26. Terminal output from CSS Lint

CSSLintinspectsyourstylesheetsforfourkindsofCSSproblems:

Compatibility: problemsthataffectaparticularbrowserversion

Performance: problemsthatcancauseslowpageloadsand

rendering

Maintainabilityandduplication

problems:

issuesthatwillmakeyourcolleaguespulltheir

hairoutandperhapsyoursaswell

Accessibility: CSSthathasanegativeimpactonusersofassist-

ivesoftware

Itreportseacherrorseparatelyasaseparateblockoftext,witheachblockcontaining

thefollowing:

■ filename(here,that’ss.css)

■ errorlocation;forexample,warning at line 92, col 1

■ guidelineofwhichyou’verunafoul(forexample,“unqualifiedattributeselectors

areknowntobeslow”or“outlinesshouldonlybemodifiedusing:focus”)

122 CSS Master