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css browser compatibility issues (tried in IETester and other browsers)_html/css_WEB-ITnose

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Release: 2016-06-24 11:39:19
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最近在研究一些关于浏览器兼容性问题的css问题,先归纳总结如下:
(1)在一些现代浏览器(opera,chrome,谷歌,safari)中,如果给块级标签如div设置padding后会导致元素的height和width增加,在IE中则不会增加,但是只在IE6中不增加,IE7以上在IETester中测试都会增加,解决办法:可以使用 !important 多设一个 height 和 width


(2)使元素水平垂直居中:垂直居中:将该元素的line-height设置为元素本身的高度,再通过vertical-align: middle;( 注意内容不要换行),水平居中:将元素的margin设置为auto;但是在IE5下没有效果

(3)想给像a,spa这样的行内元素进行样式设置,需要将它的display设置为block

(4)IE在浮动时候产生的双倍距离:若给一个div设置了float,
并且设置了margin,IE5和IE6会产生双倍的间隔,但是在其它的IE版本下就不会,在一些现代浏览器中也不会。解决办法:给该元素添加一个样式:display:inline即可


(5)第二点是 ie对于css的magin padding 等默认值为0px,但ff却不一样,为了保持外观的统一性,即使padding为0你也要写上,以免ff在浏览中的错位。

(6)firefox不支持hand,但ie支持pointer ,两者都是手形指示。 解决方法:统一使用pointer。

(7)ul标签在FF下面默认有list-style和padding, 最好事先声明, 以避免不必要的麻烦;(常见于导航标签和内容列表)

(8)作为外部wrapper的div不要定死高度, 最好还加上 overflow: hidden;以达到高度自适应;

(9)透明度问题:IE下:filter:alpha(opacity=opacityValue);其中opacityValue的值为0-100的整数,firefox下以及其他浏览器:opacity=opacityValue;其中opacityValue的值为0-1的小数

(10)有关float属性带来的差异性:
   1:如下情况:  
    .left{width: 300px;height: 300px;float: left;border:1px solid black;}
    .center{width: 400px;height: 400px;float: left;border:1px solid black;}
    .right{width: 200px;height: 200px;border:1px solid black;clear: both;}
  

one

  
twod

  
three

  (简写)在IE7及以上还有一些现代浏览器中会发生布局错位,而在IE5和IE6中会发生类名为right的块在前面两块右侧正常显示,一般会给right加一个css样式进行限制:clear:both

  2:作为外部 wrapper 的 div 不要定死高度,为了让高度能自动适应,要在wrapper里面加上overflow:hidden; 当包含float的 box的时候,高度自动适应在IE下无效,这时候应该触发IE的layout私有属性.用zoom:1;可以做到,这样就达到了兼容。 例如某一个wrapper如下定义: .colwrapper{ overflow:hidden; zoom:1; margin:5px auto;}

  (11)当内部元素面积大于外部元素面积时:如下例:
   .page{width: 920px;height: 300px;background: purple;margin: 0 auto;}
   .center{width: 400px;height: 400px;border:1px solid black;}
 

  
twod

 

  虽然外部元素定义了宽度,在IE5和IE6中,page的背景颜色会随着内部元素的高度变,但是在IE7及以上,page的背景颜色渲染的还是page本身定义的面积,不会随着内部元素比自身大而改变

  (12)高度不适应问题:
    .page{width: 920px;auto;background: purple;margin: 0 auto;}
    p{margin-top: 20px;margin-bottom: 20px; text-align:center;}
   

    

aaaasddddddddddddddddddddddddddddddddddddddddd


   

There will be normal height adaptation in IE5, IE6, and IE7, but in other versions of IE and in all modern browsers, the background rendering of the page will only accommodate the height of the p element itself
Solution : Define two empty divs before and after the p tag, and set the style as follows:

.page{width: 920px;auto;background: purple;margin: 0 auto;}
p{margin- top: 20px;margin-bottom: 20px; text-align:center;}
.empty{height:0px;overflow:hidden;}

< div class="empty">

                                                      /div> ;
This method will increase the height again in IE5 and has no effect in Safari, but it can be displayed normally in other modern browsers and other versions of IE

(13) in None In the sequence list, how to set the part beyond the li element to be displayed with ellipses: isplay:block; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; If the li element is in the table, you need to add another style :table{table-layout: fixed;} will be displayed normally. Except that this display cannot be displayed normally in IE5, it can be displayed normally in other browsers


(14) There will be a gap below the image under IE6. Solution: add display:block to img Or set the vertical-align attribute to vertical-align:top | bottom |middle |text-bottom

(15) Text and form alignment method:

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