css z-index之object flash修正

今天设置div显示在flash顶部,z-index好像不起作用了,google了一下,原来需要调整一下flash参数wmode 值为”transparent”.

<object classid=”clsid:D27CDB6E-AE6D-11cf-96B8-444553540000″ style=”z-index:-1px;” codebase=”http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0″ width=”150″ height=”156″>
<param name=”movie” value=”<flash文件路径>” />
<param name=”quality” value=”high” />
<param name=”wmode” value=”transparent” />
<embed src=”<flash文件>” quality=”high” pluginspage=”http://www.macromedia.com/go/getflashplayer” type=”application/x-shockwave-flash” wmode=”transparent” width=”150″ height=”156″></embed>

以下是z-index的使用方法供参考。 Continue reading »css z-index之object flash修正



css underline style  without text-decoration

经常使用的超链接的CSS样式,带下划线通常采用”text-decoration:underline” 普通情况下,很好用,但是当字体加粗或者对h1~h3比较大的字体加下划线时,会发现下划线与超链接连在一起,很不雅观。于是便有了将超链接下划线与文本链接往下隔开一段距离的要求。这里采用的是用首先设置text-decoration:none,然后设置border-bottom,只需设置为solid 即可,最后padding-bottom往下隔开一段像素距离如3px,可以完美实现将下划线往下隔开一段距离的要求。


Continue reading »css超链接下划线



p { color: red; }
p { color: blue; }
然而,你不可能经常用相同的选择器冲突达到目的,当你使用嵌套选择器,合理的冲突来了。比如: Continue reading »CSS的优先级特性Specificity

CSS specificity优先级规则

关于CSS specificity
CSS specificity 特性或称非凡性,它是衡量个衡量CSS值优先级个标准,既然作为标准,就具套相关判定规定及计算方式,specificity用数字串(CSS2是位)来表示,更像个级别,值从左到右,左面级,数位之间没进制,级别之间可超越。
Continue reading »CSS specificity优先级规则

CSS Specificity: Things You Should Know(转)

Apart from Floats, the CSS Specificity is one of the most difficult concepts to grasp in Cascading Stylesheets. The different weight of selectors is usually the reason why your CSS-rules don’t apply to some elements, although you think they should have. In order to minimize the time for bug hunting you need to understand, how browsers interpret your code. And to understand that, you need to have a firm understanding on how specificity works. In most cases such problems are caused by the simple fact that somewhere among your CSS-rules you’ve defined a more specific selector.

CSS Specificity isn’t simple. However, there are methods to explain it in a simple and intuitive way. And that’s what this article is all about. You’ll understand the concept if you love Star WarsReally.

Let’s take a look at some important issues related to CSS Specificity as well as examples, rules, principles, common solutions and resources. Continue reading »CSS Specificity: Things You Should Know(转)