using css to control tables in wordpress

I am trying to use css to control the table back ground images and it is not working here is the css I am using {border-collapse:collapse;
background-image: url(;
width: 750px !important;

I have my custom css plugin installed and here is the tabel code I am using

<table class=""></table>
and a link to my test pae

any thoughts to what I am missing here !