How to remove the border around a hyperlinked image

In the “Additional CSS” section of the dashboard add this:

.colors-dark .entry-content a img, 
.colors-dark .widget a img {
    box-shadow: none;
    border: 0; 
}

https://codex.www.ads-software.com/CSS#Custom_CSS_in_WordPress

Thanks, Andrew. The code worked, but now I have a thin white line under the images. Any suggestions for that?

Are you sure you want to remove that? How will people know the images are links otherwise.

Yes, positive I’d like to remove those. People will know to click on them, I hope. We’ll see. ??

You can’t do this in CSS alone because there’s no way of saying “all links that have images, remove the underline”.

You’ll have to implement a mixture of JS and CSS.

Start by creating a Child Theme: https://codex.www.ads-software.com/Child_Themes