CSS ... make my project beautiful

Hello I ve got a very small system... it is ugly It was designed in php, mysql. I need someone to make it more beautiful. to create menus , buttons... etc. I need the following: 1- make the necessary changes and add tags to the code to make the system CSS-based design. and maybe add the necessary icons or graphics. 2- create two different beautiful designs; each one in a different CSS file. it will be great if you can show some of your previous works. my maximum budget for this work is $40 after completion( sorry , I can not escrew) Please bid only if you are able to do the job and within the budget limit. Thanks