@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document domain("localhost") {

.phperror:before
{
content: url("http://localhost/php_manual_de/php.ico");
display:inline;
}

.phperror br:first-child
{
display:none;
}

.phperror
{
margin-top:0.5em;
margin-bottom:0.5em;
display:block;
}

}