test out tech-term. made default for header. made no-asside version of css. made constant bottom for tech-term

bios is the beta of teh tech-terms. the header will now work for any page, bugs in prior. no asside is still in testing for side boundaries, though start is there. term-bottom goes before "footer.php" to add buttons to go to website and close the tab.
Most changes are made with the goal of getting more like the current site.