.button:not(.button--text), .shopify-challenge__button, #shopify-product-reviews .spr-summary-actions-newreview, #shopify-product-reviews .spr-button{
    letter-spacing: 0px !important;
    text-transform: none !important;
}
.button-wrapper span.link.link--button{
    letter-spacing: 0px !important;
    text-transform: none !important;
}