js控制页面字体大小的问题_html/css_WEB-ITnose
这是我对当前页面的字体大小和颜色进行修改的代码，
为什么当要修改的内容本身有了字体和颜色设置就不能重新设置了？？
回复讨论(解决方案)
css遵循就近原则。
其实是可以的，不过你需要给你要修改的标签加上id属性，通过修改id的颜色来达到单独改变的效果。
如果你仅仅用class来改变样式，是不行的。
还不如用
JS：
case 0；$('#text').addClass('someclass');
CSS
.someclass{font-size:15px!important;}
之类的。
还不如用
JS：
case 0；$('#text').addClass('someclass');
CSS
.someclass{font-size:15px!important;}
之类的。
不行啊 如果字体本身有样式 还是修改不了
其实是可以的，不过你需要给你要修改的标签加上id属性，通过修改id的颜色来达到单独改变的效果。
如果你仅仅用class来改变样式，是不行的。
要修改的是前台拼出来的，不是固定
如果页面其他元素已经定义了 fontsize
你通过给body 定义fontsize 是影响不到已经定义元素的fontsize的
要想更改就要把body 或#text下的元素 进行定义 ，而不是给它的父级定义
如果页面其他元素已经定义了 fontsize
你通过给body 定义fontsize 是影响不到已经定义元素的fontsize的
要想更改就要把body 或#text下的元素 进行定义 ，而不是给它的父级定义
这不是很麻烦啊， 我的页面有的是动态生成的，都用id 警告的
LZ的意思是设置了#text的字体和颜色，然后设置body的不生效？
那样的话就如#1所说，CSS是有优先级之分的，你给body的话是继承样式，但是直接给#text样式是内联样式，内联样式优先级是最高的。
http://www.blueidea.com/tech/web/2009/6801.asp
如果页面其他元素已经定义了 fontsize
你通过给body 定义fontsize 是影响不到已经定义元素的fontsize的
要想更改就要把body 或#text下的元素 进行定义 ，而不是给它的父级定义
这不是很麻烦啊， 我的页面有的是动态生成的，都用id 警告的
可以通过标签去设定，难道你是每一个元素 对应一个id，每一个id对应一个样式吗？
如果页面其他元素已经定义了 fontsize
你通过给body 定义fontsize 是影响不到已经定义元素的fontsize的
要想更改就要把body 或#text下的元素 进行定义 ，而不是给它的父级定义
这不是很麻烦啊， 我的页面有的是动态生成的，都用id 警告的
可以通过标签去设定，难道你是每一个元素 对应一个id，每一个id对应一个样式吗？
搞定了 3q
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