问题
Possible Duplicate:
Change an input's HTML5 placeholder color with CSS
For example, I have this:
<input type='search' placeholder='Search' name='q' />
How can I style the placeholder with CSS? By default it's gray, but I'd like it to be black. Do I have to use JavaScript instead?
回答1:
no standard way, and not every browser supports place holder yet.
Something like this should do it.:
/* prefix with input if you want, but this will catch input and texatrea */
::-webkit-input-placeholder { color: #000;}
:-moz-placeholder { color: #000; }
http://jsfiddle.net/CHG46/
if you want old and new browsers to support placeholder (IE6-9) there appears to be a jquery plugin(s), here is one, https://github.com/mathiasbynens/Placeholder-jQuery-Plugin however, I have not used it before.
回答2:
input[placeholder="Search"]
{
color: red
}
来源：https://stackoverflow.com/questions/6485247/styling-the-placeholder-of-an-input-how-can-i-do-this