app/assets/stylesheets/application/bootstrap/_btn.scss
.btn {
font-weight: 600;
font-size: 12px;
&.btn-default, &.btn-primary, &.btn-success, &.btn-danger {
text-transform: uppercase;
}
&.btn-primary {
background-color: #e8b53c;
border-color: darken(#e8b53c, 2.5);
&:hover, &:focus, &:active {
background-color: darken(#e8b53c, 2.5);
border-color: darken(#e8b53c, 5);
}
}
}