.normal {background-color: gray;}
.backslash {bac\kground-color: gray;}
html>body .childselector {background-color: green;}
html>/**/body .childselector-with-comment {background-color: orange}
.colon-default2, x:default
html>/**/body .colon-default, x:default
*:not(hr) .not-hr {background-color: red;}
* html .ie-only-1 {background-color: blue;}
*+html .ie-only-2 {background-color: blue;}
*+html .ie-only-3 {background-color: blue;}
html:first-child .first-child-2 {background-color: red;}
/* does not work as CSSUnknownRule read: 
	@mediaall { .mediaall { background-color: red; }}
*/
.not-class:not([class='XXX']) {background-color: red;}
@media all and (min-width: 0) { .mediaquery { background-color: red;} }