Hi Michelle,
it comes directly from an style tag in the header of your template (Probably not a good idea to put it there) on line 44:
#rt-main-column a, .rt-sidebar-surround .box1 .rt-block a, .rg-list-view .item-title, .rg-grid-view .item-title, .rg-detail-item-title, .content-tabs .roktabs-wrapper .roktabs-links ul li.active span, #rt-breadcrumbs a, #rt-content-top .title span, #rt-content-bottom .title span, #rt-main-column .component-content .contact h3.title a, #rt-popup a, #rt-popuplogin a {
color: #547d1a;
}
The btn is an "a" (link) HTML element - so the above code affects it.
You could the following css to change the color to white:
.compojoom-bootstrap .btn-primary {
color: #fff !important;
}
Just put it into your Joomla templates CSS file.
Kind regards,
Yves