I need CSSto change the background color of the gray fields of the checkout form

Hi Heinz,

Can you try adding this CSS code:

#top .wc-block-checkout__main .input-text, #top .wc-block-checkout__main input[type='text'], #top .wc-block-checkout__main input[type='input'], #top .wc-block-checkout__main input[type='password'], #top .wc-block-checkout__main input[type='email'], #top .wc-block-checkout__main input[type='number'], #top .wc-block-checkout__main input[type='url'], #top .wc-block-checkout__main input[type='tel'], #top .wc-block-checkout__main input[type='search'], #top .wc-block-checkout__main textarea, #top .wc-block-checkout__main select {
    background-color: #efefef;
}

Hope it helps.

Best regards,
Nikko