Hi there,
GP doesn’t control the styling of plugins, there are some styles a plugin may inherit from the theme. In this case the plugin has added its own CSS that is breaking the Qty Form alignment – which you can fix with this CSS:
#ht-quick-viewmodal .quantity {
display: flex;
}
The plugin also adds it own styles to the Heading with this CSS:
#ht-quick-viewmodal.woocommerce div.product .product_title {
color: #010101;
font-size: 24px;
line-height: 1;
margin: 0;
}
You can add that CSS and adjust the settings if you need to.