core/app/assets/stylesheets/constructor_core/project/blocks/b-button/_color/b-button_color_light.scss
.b-button.b-button_color_light {
font-weight: 300;
color: #555;
background: #ddd;
border: 1px solid #ddd;
@include gradient-vertical(#f5f5f5, #f1f1f1);
&:hover, &:active, &:focus {
border: 1px solid #ccc;
@include gradient-vertical(#f1f1f1, #f5f5f5);
}
}