I need help adding a border around all of my images in my calendar

Hi @Richard06 - do you mean a border-radius (ie rounding the edges?), or an actual colored border?
I've included code for both below:

/* Calendar Image Borders */
.eventlist-column-thumbnail {
background: transparent !important;
}
.eventlist-column-thumbnail img {
    border-radius: 50px;
border: 2px solid blue; // border thickness, style and color
}

Lmk if you have questions!