Login/Register text position

www.mangialarossa.com/index.php/en/

Hi,
Can you please provide me with the CSS code to get the login / register text aligned in one single line to the right of the bar? Also to get it responsive?
Now I am using the following code but the display result is not good enough:

.sclogin {
overflow: visible;
text-align: left;
float: right;
list-style: none;
padding:0px;
margin: 0 -160px;
}

Thanks in advance