Rules to Better UI (Bootstrap)

• Do you always use a CSS preprocessor language over plain CSS, such as LESS or SCSS?
• Do you use CSS frameworks?
• Do you provide alternate sizings for Bootstrap columns?
• Do you set device width when designing responsive web applications?
• Do you use display classes to responsively hide/show content?
• Do you use Respond JS to target IE8 with Bootstrap?
• Do you use the best libraries for icons?
• Do you use the CSS class "form horizontal" to arrange your fields and labels?
• Do you use Web Essentials?