Quantity text color or bkgnd color woocommerce

Hello,

Can anyone help me with changing the text color in the quantity box on a Woocommerce product page in the Highend theme? The current text is black with a black background. My client is not overly concerned with the look of the site so I can change either the text color or background color to white.

For the text color, I’ve tried changing H1 – H6 – doesn’t work.
For background color, I’m no css expert so can’t easily do it with Additional CSS.

When I ‘Inspect’ the block of code is this:

<input type=”number” id=”quantity_5e84ee1f617c3″ class=”input-text qty text” step=”1″ min=”1″ max=”” name=”quantity” value=”1″ title=”Qty” size=”4″ pattern=”[0-9]*” inputmode=”numeric” aria-labelledby=”Now I Know My ABCs T-Shirt quantity”>

Below in the “Styles” pane, I add the Filter color and see this:

background: 0 0;
background-image: initial;
background-position-x: 0px;
background-position-y: 0px;
background-size: initial;
background-repeat-x: initial;
background-repeat-y: initial;
background-attachment: initial;
background-origin: initial;
background-clip: initial;
background-color: initial;

…but can’t edit the code for “background-color: initial;” to preview the look before adding it to Additional CSS.

Page in question is:
https://rotsworldwide.com/product/now-i-know-my-abcs-t-shirt/

The quantity box in question is directly above ADD TO CART.

Thanks in advance for your help.

Dave