Styling by ID:

.meridian-placemark-icon[data-meridian-placemark-id="5750085036015616"] { width: 50px;
height: 50px;
border-color: red;
background-color: red;
background-image: url("./heart.png");
animation: pulsing 5s infinite;

Styling by Category:

body .meridian-placemark-category-dolbywidescreen border-color: green;
background-color: green;
width: 50px;
height: 50px;

Note: Categories with special characters need to be targeted accordingly. Spaces and most special characters (with the exception of underscores and dashes) are removed. Capitalized letters are also turned lower case.

Example: For the placemark category “Dolby/Widescreen”, target "meridian-placemark-category-dolbywidescreen".