Then on a round-up of some css knowledge
(I) Background
Background Properties
1.background-color function sets the background color rgb
2.background-image background image url ( "logo.jpg")
Url add a function that brackets, double quotes with the parameter is added to the full path of the image of the background image (relative path) and a file name.
Background fill 3.background-repeat manner (filled tessellated)
⑴ value of repeat, as a background image to fill the entire page.
⑵ value of repeat-x, unidirectional fill, horizontal fill line.
⑶ value of repeat-y, filling way, a vertical filling.
⑷ value of no-repeat, all the above components are provided with a uniform background property. Order: background color, background image, refillable way
(Ii) a hyperlink
Four states link
1.a: link normal, unvisited links
2.a: the user has visited visited links
3.a: hover the mouse pointer above the link hover
4.a: active link is clicked the moment (in the activated state is clicked)
The four way link is called pseudo-class selectors
After visited: 1, the order of: ⑴.a: hover: must be in a: link and .a
After hover: ⑵a: active: you must be in a
2.css hyperlinks, hover enlarge font
(Iii) a list of list
Ul unordered lists and ordered lists ol common style
Attribute Description
1.list-style property for a list of all the settings in a statement
2.list-style-image as the list item flag image
Location 3.list-style-position mark
Type 4.list-style-type logo
*list-style-type 的相关属性值
㈣表格 table
1.表格大小：width（宽）,height（高）
2.表格边框：border属性，table，td，th，border-collapse属性
3.border-collapse属性
例如：table{border-collapse：collapse；} 为叠加或坍缩的意思，这样表格边框和单元格边框就重叠成一个了。
4.奇偶选择器： ：nth-child（odd/even） odd：奇数个元素 even：偶数个元素
例如：tr：nth-child（odd）{background-color：#EAF2D3；}
奇偶选择器常在下面表格样式隔行设置不同颜色中应用
注意：⑴奇数个是从第一行开始设置的（tr父元素table的第一个子元素开始，奇数个元素）
⑵第一行为表头单元格，加入th标签来进行设计。
希望有所帮助。