Other people are going to look at this page hundreds or thousands of times, often in moments of crisis, so investing in making it easy to read/understand is a no-brainer for positive ROI on time. As for "making it pretty", it's not like this is chock full of gradients and exotic fonts and custom background images--in fact there's no reason I can think of why simple, pure-CSS designs would take any longer to develop if they're pretty than if they are not.