How to change overlay color in a poster block?

Hello! 

I have this in my code which gives me a white overlay over my poster blocks with 65% transparency. How can I change the overlay to black, and also, how do I change the text in the poster block to a different color hex (like white?) Essentially, if you see the image below I want the poster blocks below to look more like the resource header block.

}
.design-layout-poster .image-overlay{opacity:.65;

}

Thank you so much!

Please provide your site url

Hi @bangank36 I'm afraid the site is not currently live so I am unable to. Are you unable to assist without the URL?

10 hours ago, linyues said:

Hi @bangank36 I'm afraid the site is not currently live so I am unable to. Are you unable to assist without the URL?

 

You can set up a temp password

Site-wide passwords – Squarespace Help

You can add this to Home > Design > Custom CSS to change poster text color

/* poster text color */
.design-layout-poster * {color: white !important;}

Hi @bangank36 the URL is https://www.silverstrand.capital/resources 

Thank you so much @tuanphan that is really useful for the text, but how can I also change the color of the overlay of the image to black? Thank you! 

4 hours ago, linyues said:

Hi @bangank36 the URL is https://www.silverstrand.capital/resources 

Thank you so much @tuanphan that is really useful for the text, but how can I also change the color of the overlay of the image to black? Thank you! 

Add to Design > Custom CSS

.design-layout-poster .image-overlay {
    background: red !important;
}