Make TR to comport like TD (ie7)

Question

Can I put 2 TR in a line Like in IE7 using CSS ?

In Firefox and Ie8

 {
    display:block;
    float:left;
    padding-right:20px;
    width:225px;}

But it doesn't work in IE7 :(

If not, even with jquery can you help to fix it ?

Thanks !