# Competent

• CSS: Complex rules and defining styles structure (defining rules that applies to specific elements based on complex condition)

• CSS: Box models

• CSS: Typography & Fonts

• CSS3: Transitions, animations, transforms

• Preprocessors: SASS/SCSS, Less, PostCSS main features and concepts

• Preprocessors: Variables, nesting, mixins

• Bootsrap/Foundation: Components (tabs, form elements), themes

• Bootstrap/Foundation: Customization (adapt component/theme to project specific)

• CSS Methodologies (BEM, OOCSS, SMACSS, etc.): Overall princeples