通过JavaScript做CSS [英] Doing CSS via JavaScript

问题描述

我想通过JavaScript做一行CSS： -


p {margin：0px; }


如何解决这个问题？


非常感谢提前，


亚伦

解决方案

>我想通过JavaScript做一行CSS


做是什么？意思？这需要插入哪里？可以将

插入到html doc的head元素中吗？


Peter

>>我想通过JavaScript做一行CSS

做是什么？是什么意思？
这需要插入哪里？是否可以将
插入到html doc的head元素中？

我在IFrame中有一个文档，并希望修改其CSS设置以使

段落的边距为零。


Aaron

Aaron Gray写道：

我想通过JavaScript做一行CSS： -

p {margin：0px; }

我该怎么做？

在JavaScript中改变单个元素的样式很容易，但在
中
为了做你想做的事，你必须找到所有的p元素和

将样式应用到返回的每个元素。


Something喜欢（未经测试）


var paras = document.getElementsByTagName（''p''）;


for（var i = paras.length -1; i> =）; --i）

{

paras [i] .style.margin =''0px'';

}


-

Ian Collins。

Hi,

I have a single line of CSS that I want to do via JavaScript :-

p { margin: 0px; }

How do I go about this ?

Many thanks in advance,

Aaron

解决方案

> I have a single line of CSS that I want to do via JavaScript

What does the "do" mean? Where does this need to be inserted? Can it be
inserted into the head element of your html doc?

Peter

>> I have a single line of CSS that I want to do via JavaScript

What does the "do" mean?
Where does this need to be inserted? Can it be
inserted into the head element of your html doc?

I have a document in an IFrame and want to modify its CSS setting to make
paragraphs have zero margins.

Aaron

Aaron Gray wrote:

Hi,

I have a single line of CSS that I want to do via JavaScript :-

p { margin: 0px; }

How do I go about this ?

It''s easy to change the style on a single element in JavaScript, but in
order to do what you want, you will have to find all the p elements and
apply the style to each element returned.

Something like (untested)

var paras = document.getElementsByTagName(''p'');

for( var i = paras.length-1; i >= ); --i )
{
paras[i].style.margin = ''0px'';
}

--
Ian Collins.

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