adding code from auctionzip.com

I am in WP 4.1 using the weaver II pro theme. On our page at https://frankwalkerauctions.com/auction-schedule/ I am trying to use the script that an auction company gave me to reproduce the info on their site.

But the formatting is coming out wrong.

Is there a correct way to insert the code so that it matches the style of the original site, which is at https://www.auctionzip.com/cgi-bin/auctionlist.cgi?vuid=77677 ?