On the Month view, when you hover over an event title, a handy tooltip will pop up, showing more details. By default, this has a vertical layout, as shown below.
It is possible to change this layout to horizontal with a few lines of CSS. You can add the following CSS rules to the style.css file of your theme — preferably child theme — or in the Additional CSS box under Appearance → Customize.
.tribe-events-tooltip-theme {
width: 600px !important;
max-width: unset !important;
}
.tribe-events-tooltip-theme .tribe-events-calendar-month__calendar-event-tooltip-featured-image-wrapper {
float: left;
margin-right: 2em;
}
.tribe-events-tooltip-theme .tribe-events-calendar-month__calendar-event-tooltip-title {
clear: none;
}
This should result in horizontal tooltips like this:
Of course, you can adjust the width of the tooltip according to your needs.