Check your syntax: selector {property: value;} Check for extra/missing/incorrect: colons : semi-colons ; opening or closing brackets { or } opening or closing parenthesis ( or ) Check that the selector is correct: Does it exist in both the HTML and CSS? Is it in the correct format for both the HTML and CSS? Could something else be over-riding the selector? Try using a more specific selector Try moving the style lower in the stylesheet (CSS page) Is your spelling correct? Is your capitaliztion correct or consistent?