Some Changes With Links

Hi

please our website:

http://happymall.org/az/ev-bag-and-ofis/ofis-defterxana/ofis-levazimatlari/qovluq-and-fayl/xp-lc300-8-qara-qutu-qovluq.html

So I would like to add buttons to - add to favorites, add to comparison, 1 click order.

I mean the background of these links must be as 'add to cart'

Secondly,

I need to icons to the favorites and comparison button.

To add background please add the following code to the CSS section of the Theme editor

.ty-product-block__button .ty-btn {
margin-right: 6px;
background: #ced840 !important;
color: #fff;
padding: 6px 7px;
}
.ty-product-block__button .ty-btn:hover {
background: #d5dd59 !important;
}
For icons you can use pseudo-classes

Thanks for help, which file I need to edit to add icons?

To add background please add the following code to the CSS section of the Theme editor

.ty-product-block__button .ty-btn {
    margin-right: 6px;
    background: #ced840 !important;
    color: #fff;
    padding: 6px 7px;
}
.ty-product-block__button .ty-btn:hover {
    background: #d5dd59 !important;
}
For icons you can use pseudo-classes

I think, to you can just upload icons to your server and create necessary styles without templates changing