ResponsiveWebDesign:基本HTML和HTML5

响应式网页设计 HTML_Basic： structure buttons input div lists images links achor (a) paragraphs forms label basic styles in styles.css CSS_Basic： different style declarations style declaration priorities !important style declaration CSS_Basic_Pinguin： Working with styles on the example of an pinguin 视觉设计： text-align in styles.css rgba() --> like rgb but with transparency level of 0 to 1 box-shadow opa