custom css for button

Hi

I can not find where or how to change the colors of the buttons:

I ve tried in de custonizing 'advanced' en in custom css :
/* Change the colour of buttons: */
.uk-button-large {
background-color: #348ecd;
color: #FFFFFF;
}

i want to have a blue button with white text and the opposite when you go over the button:

see:
www.paysmart.be : home page: grey bar, button "NU BESTELLEN'

Thx
Janis

Hi Janis,
this button class is not include our theme.
But you can add your own style for this button. Add this css code to your css/custom.css