css - New CSS3 selectors doesn't work for me? -

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ok, have code this:

<div id="header"> (yeah, have use div instead of header tag, don't ask me why)      <a href="link"><img src="image1.png" alt="image1" /></a>      <a href="link"><img src="image2.png" alt="image2" /></a>      <a href="link"><img src="image3.png" alt="image3" /></a> </div>

and want select first image after div (first link image) , 2 last links in css.

i know nth-child or first/last child selectors. want use "+" , "~". doesn't seem work!

for example:

#header + {      border: solid 1px red; }

gives border to... nothing!

this 1 doesn't seem work:

#header + img {      border: solid 1px red; }

what's wrong?

same effect "~". tested in major browsers....

you've got wrong. selector you're looking 

#header > a:first-child

this select first anchor direct decedent of #header. > direct decedent selector, while :first-child gets the... well, first child. image, need

#header > a:first-child > img

the direct decendent selector not supported in ie6. can choose not use if there no non-direct decedents not want select, structure have above, doesn't have other anchors other ones want select.

the + adjacent sibling selector: http://meyerweb.com/eric/articles/webrev/200007a.html. following html structure need selector work: 

<div id="header"></div> <a href="#"><img src="somewhere" alt="" /></a> <-- selects 1 #header + <a href="#"><img src="somewhere" alt="" /></a> <a href="#"><img src="somewhere" alt="" /></a>

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