user fieldset problem

Hi everybody,

I used below code for registration form fieldset.

.rcp_user_fieldset { border: 1px solid #492B21; }
.rcp_user_fieldset p { border-bottom: 1px solid #492B21; padding: 5px 8px; }
.rcp_user_fieldset p:last-of-type { border-bottom: none; }
.rcp_user_fieldset label {
display: inline-block;
min-width: 27%;
}

But recently this code’s don’t work!!! and registration form is disordered.

The page I need help with: [log in to see the link]