Can I apply a CSS style to an element name?

问题:

I'm currently working on a project where I have no control over the HTML that I am applying CSS styles to. And the HTML is not very well labelled, in the sense that there are not enough id and class declarations to differentiate between elements.

So, I'm looking for ways I can apply styles to objects that don't have an id or class attribute.

Sometimes, form items have a "name" or "value" attribute:

<input type="submit" value="Go" name="goButton">

Is there a way I can apply a style based on name="goButton"? What about "value"?

It's the kind of thing that's hard to find out because a Google search will find all sorts of instances in which broad terms like "name" and "value" will appear in web pages.

I'm kind of suspecting the answer is no... but perhaps someone has a clever hack?

Any advice would be greatly appreciated.

回答1:

You can use the attribute selector, input[name="goButton"] { }. Be aware that it isn't supported in IE6.

Update: In 2016 you can pretty much use them as you want, since IE6 is dead. http://quirksmode.org/css/selectors/

http://reference.sitepoint.com/css/attributeselector

回答2:

Text Input Example

input[type=text] {    
    width: 150px; 
}

input[name=myname] {    
    width: 100px;
}    

回答3:

You can use attribute selectors but they won't work in IE6 like meder said, there are javascript workarounds to that tho. Check Selectivizr

More detailed into on attribute selectors: http://www.css3.info/preview/attribute-selectors/

/* turns all input fields that have a name that starts with "go" red */
input[name^="go"] { color: red }

回答4:

For future googlers, FYI, the method in the answer by @meder , can be used with any element that has a name attribute, so lets say theres an <iframe> with the name xyz then you can use the rule as belows.

iframe[name=xyz] {    
    display: none;
}   

The name attribute can be used on the following elements:

• <button>
• <fieldset>
• <form>
• <iframe>
• <input>
• <keygen>
• <map>
• <meta>
• <object>
• <output>
• <param>
• <select>
• <textarea>

回答5:

If i understand your question right then,

Yes you can set style of individual element if its id or name is available,

e.g.

if id available then u can get control over the element like,

<input type="submit" value="Go" name="goButton">

var v_obj = document.getElementsById('goButton');

v_obj.setAttribute('style','color:red;background:none');

else if name is available then u can get control over the element like,

<input type="submit" value="Go" name="goButton">

var v_obj = document.getElementsByName('goButton');

v_obj.setAttribute('style','color:red;background:none');

回答6:

This is the perfect job for the query selector...

var Set1=document.querySelectorAll('input[type=button]');  // by type

var Set2=document.querySelectorAll('input[name=goButton]'); // by name

var Set3=document.querySelectorAll('input[value=Go]'); // by value

You can then loop through these collections to operate on elements found.

回答7:

have you explored the possibility of using jQuery? It has a very reach selector model (similar in syntax to CSS) and even if your elements don't have IDs, you should be able to select them using parent --> child --> grandchild relationship. Once you have them selected, there's a very simple method call (I forget the exact name) that allows you to apply CSS style to the element(s).

It should be simple to use and as a bonus, you'll most likely be very cross-platform compatible.