4 <input type="text" id="input5" value="input5 from form3" tabindex="2"><br>
5 <div id="contenteditable4" contenteditable="true" tabindex="3">contenteditable
4 from form3</div><br>
6 <a href="#" id="anchor3" tabindex="4">anchor3 from form3</a><br>
7 <textarea id="textarea6" tabindex="1">textarea6 from form3</textarea><br>
8 <div id="contenteditable5" contenteditable="true" tabindex="-1">contenteditabl
e5 from form3, but not considered for navigation due to invalid tabindex</div><b
r>
9 <input type="text" id="input6" value="input6 from form3" tabindex="5"><br>