WordPress Calendar Plugin
WP FullCalendar
Uses to display the calendar

When you see it on your smartphone, if it exceeds a certain height
Switching to scrolling effectively makes it invisible from the screen.

Table height for smartphone display
1) Display 100% if possible
2) If it is difficult, set a slightly larger number
I want to do, but I don't know how to write CSS.

I tried to add the following CSS to the additional CSS,
Rather than the height of the table, the height of each cell has become 500px.
(And not only on smartphones, but also on PC displays.)
The cell itself is just as it is, and you can not specify the display height of the entire table in the smartphone display

.fc table
{
height: 500px;
}

Supplemental information (FW/tool version etc.)

WordPress version 5.3
Use the "Events Manager" plug-in to register events separately.