How to modify/customize image styles?

Currently, HelpLook supports customizing image styles by embedding code . For example, if you add a shadow style code in the CSS code, all article images on the site will use this style.

Click Setup - > Site Settings, select "Tech support", and embed the following CSS code

Shadow style:

 .hl-doc-codewrap img {
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.16), 0 3px 3px rgba(0, 0, 0, 0.23);
}