css - Can I use the :after pseudo-element on an input field? -

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i trying use :after css pseudo-element on input field, not work. if use span, works ok. 

<style type="text/css"> .mystyle:after {content:url(smiley.gif);} .mystyle {color:red;} </style>

this works (puts smiley after "buu!" , before "some more")

<span class="mystyle">buuu!</span>a more

this not work - colors somevalue in red, there no smiley.

<input class="mystyle" type="text" value="somevalue">

what doing wrong? should use pseudo-selector?

note: cannot add span around input, because being generated third-party control.

:after , :before not supported in internet explorer 7 , under, on elements.

it's not meant used on replaced elements such form elements (inputs) , image elements.

in other words it's impossible pure css.

however if using jquery can use

$(".mystyle").after("add smiley here");

api docs on .after

to append content javascript. work across browsers.


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