Also I wanted to ask, on my nazic theme i added a custom div above the nav menu so now i want to change the css from:
.header-right {
float: right;
padding: 30px 0px;

.header-right {
float: right;
padding: 18px 0px;

for this purpose I tried to edit
/skin/frontend/sns_nazic/default/css/theme-f23f3f.css : 2605
but it’s not changing or not saving the new changes.

Can you please tell me which css file should i be changing?
and also which file contains the Media Query that i can edit?

Thank you so much in advance.