1<!DOCTYPE html> 2<html> 3 <head></head> 4 <body> 5 <h3> 6 Doc Title 1a 7 </h3> 8 <h2 id="doc-title.a1"> 9 a1 10 </h2> 11 <h2 id="doc_title_1a.inc1"> 12 inc1 13 </h2> 14 <h2 id="doc-title.a2"> 15 a2 16 </h2> 17 <h2 id="doc_title_1_inc2.inc2"> 18 inc2 19 </h2> 20 <h2 id="doc-title.a3"> 21 a3 22 </h2> 23 <h2 id="doc_title_1_inc2.inc3"> 24 inc3 25 </h2> 26 <h2 id="doc-title.a4"> 27 a4 28 </h2> 29 </body> 30</html> 31