phone_app/app/assets/stylesheets/public/custom/_features.scss

//
// Features
//

.feature {

    .feature-thumb {
        transition: all 0.3s ease-in-out;

        img {
            @extend .img-shadow;
        }
    }

    &:hover .feature-thumb {
        transform: translateY(-5px);
    }

    .feature-content {
        padding: 30px 0;
    }
}