Reposition phone info next to menu

Hi,

I have a logo left – menu right setup and i want my phone number on the same row as the menu, but on a fixed padding from the right side of the screen. I tries this code and it works but when i resize the screen the phone number is not positioned well.
For now i deleted this code and the phonenumber is on the top of the screen.
Can you help me out?
THX Freek

/*  Tel nr op zelfde regel als menu*/
div.phone-info {
position: relative;
top: 85px;
left: 1%;
font-size: 18px !important;
font-weight:thin;
font-family: avenir; }