Hello,
You can add this css code in Theme Options > Styling > Custom css > Custom css for mobile:
.single-product .fixed-content {
display: -webkit-box;
display: -webkit-flex;
display: -ms-flexbox;
display: flex;
-webkit-box-orient: vertical;
-webkit-box-direction: normal;
-webkit-flex-direction: column;
-ms-flex-direction: column;
flex-direction: column;
}
.single-product .short-description,
.single-product .product-information .yith-wcwl-add-to-wishlist, .single-product .product-info-wrapper .yith-wcwl-add-to-wishlist, .single-product .product-summary-center .yith-wcwl-add-to-wishlist,
.single-product .product-information .product_meta, .single-product .product-info-wrapper .product_meta, .single-product .product-summary-center .product_meta,
.single-product .product-content .compare,
.single-product .product-share {
-webkit-box-ordinal-group: 2;
-webkit-order: 1;
-ms-flex-order: 1;
order: 1;
}
Regards