Positioning background image on form element with CSS sprites - html

Question

I am trying to get a magnifying glass as the background for my input element. The magnifying glass icon is part of a CSS sprite that looks like this:
To position it, I've used these properties:
#search-form input[type="text"] {
background: url('../images/icons.png') no-repeat left center;
background-position: 0px -30px;
border: 1px solid #a9e2ff;
padding: 3px;
width: 200px;
font-size: 1em;
padding-left: 20px;
}
But the background still appears at the top of the input box rather than aligned in the vertical middle and to the left. I've also tried doing:
background: url('../images/icons.png') no-repeat left middle;
but that doesn't work either.
If it matters, although I'm guessing it doesn't, here's my form markup:
<form action="/search" method="get" id="search-form">
<input type="text" placeholder="Search..." name="s">
</form>
Thanks for any help.

Answer 1

You declared background-position two times. The first one at the end of the background short-hand property, the second one on the next line. Solution: Split all single background rules like this (additionally, 0 -24px is the correct value):
#search-form input[type="text"] {
background-image: url('http://i.stack.imgur.com/MFpLm.png');
background-repeat: no-repeat;
background-position: 0 -24px;
border: 1px solid #a9e2ff;
padding: 3px;
width: 200px;
font-size: 1em;
padding-left: 20px;
}
And now you can face the real problem with your design: other sprites will be visible in the input area if there are no sufficient space between them.