Day display height

I am currently trying to get the height of the simple calendar plugin smaller. Unfortunately the min-height property is set in multiple elements .style (element.style) meaning I have resorted to manually overriding it in my CSS like so:

.simcal-day>div, .simcal-day>div span {
    height: min-content !important;
    min-height: 0 !important;
}

Unfortunately when reloading the page the height of the day divs is still at 75.875px and it looks like this:

but as soon as I switch to a different month it does what I want and starts to look like this:

As you can see the height gets correctly updated, but only once the navigation buttons were used – any idea why or how I could achieve what you see in the second picture always?