+ <span>...</span><a id="linkWithNoHrefWithNoTabIndex">Eat a burger</a><span>...</span>
+ <span>...</span><a id="linkWithNoHrefWithTabIndex" tabindex="1">Eat some funyuns</a><span>...</span>
+ <span>...</span><a id="linkWithNoHrefWithNegativeTabIndex" tabindex="-1">Eat some funyuns</a><span>...</span>