<!doctype html> <html><head> <!-- This tests behavior specified in CSS Syntax Level 3, as of the Editor's Draft 19 June 2013: http://dev.w3.org/csswg/css-syntax/ --> <title>\0 in CSS</title> <style> p#a:before { content: "\0x" } p#b:before { content: "\00x" } p#c:before { content: "\000x" } p#d:before { content: "\0000x" } p#e:before { content: "\00000x" } p#f:before { content: "\000000x" } p#g:before { content: "\0 x" } p#h:before { content: "\00 x" } p#i:before { content: "\000 x" } p#j:before { content: "\0000 x" } p#k:before { content: "\00000 x" } p#l:before { content: "\000000 x" } </style> </head><body> <p id="a">(a)</p> <p id="b">(b)</p> <p id="c">(c)</p> <p id="d">(d)</p> <p id="e">(e)</p> <p id="f">(f)</p> <p id="g">(g)</p> <p id="h">(h)</p> <p id="i">(i)</p> <p id="j">(j)</p> <p id="k">(k)</p> <p id="l">(l)</p> </body></html>