Thank you for sending us the purchase code.

Sorry, that's not the right place to add the CSS. This is not a PHP snippet.

To add this CSS code, please try the following:

Step 1) Go to Appearance -> Customize in the Backend

Step 2) Usually you can find "Additional CSS"

Step 3) Click on Additional CSS, and copy-paste the snippet there:

Step 4) Save / Click Publish

Does that work for you?

- Stefan

I checked your site. Please add this CSS as well:

.woocommerce-variation.single_variation {
    width: 98%;
}

It looks like this in my tests:

Glad to hear that worked. My pleasure ^^