Typically my stylesheets imported into Sigil for finishing up have never had a tag for <a> defined, never needed one. So if default is to underline, you need to add it obviously. Which being such a newb at this I didn't realize
. My chapters that were underscored also had a <p class="Style3"> assigned, but I did not need to add the text-decoration:none to that style to hide the underscores.
Although not sure I'd permanently use this, but I wanted to know how to do it. It's nice for on the PC and probably reading on tablets and on cell phones, but if you're reading on an e-ink reader, how would you know that the chapters are links without the underscore since they're not in color?