How to add a popup type login

Hi guys, I’m trying to add a login that looks like my search form. Check out what my search form looks like. https://www.oatboat.com

here’s the code for the search form:

<li class="search-li"><a class="search-bt" href="#"><i class="icon-search"></i></a></li>
				</ul>
				<div class="ft-search-hide"><?php get_search_form( true ); ?><div class="ft-shbg"></div></div>

Is there a way to make a login form that works and looks like the search pop out? Thanks!