CSS网页设计技巧十则
作者 佚名技术
来源 CSS技术
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发布时间 2012-03-04
| nbsp;properties. /* 1px blue border on the left and bottom _ www.webjx.com */ border:1px solid blue; border-width: 0 0 1px 1px; Avoid Unnecessary Selectors - 避免多余的选择器 Just specify the minimum number of selectors necessary for the style. If you find yourself doing ul li {...} or table tr td {...} then you''re being more verbose than you need. LI''s will inevitably be in UL''s (okay, I suppose they could find themselves in OL''s, in which case, be more specific for those styles) and a TD will inevitably be in a TR and a TABLE. Or putting the element name in front of an ID selector (Example: div#navigation). I used to do this because it''d help me "remember" which element the ID is on. As it turns out, I tend to use similar class names from project to project and they inevitably appear on the same elements. I also tend to just do a search to find where something is. So, these days, I just leave it at #navigation. Using less selectors will mean less selectors will be needed to override any particular style — that means it''s easier to |
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