Make reveal.js slides render without JavaScript

userstyle.css

* {
    box-sizing: border-box !important;
    pointer-events: initial !important;
}

.slides {
    position: static !important;
}

.slides section {
    position: static !important;
    display: grid !important;
    justify-content: center !important;
    align-content: center !important;
    height: auto !important;
    min-height: 100vh !important;
    padding-block: 1em !important;
    border-bottom: 3px solid black !important;
}

.slides section > * {
    max-width: 80vw !important;
}

.fragment {
    opacity: 1 !important;
    visibility: visible !important;
}

h2 {
    white-space: initial !important;
}

h2 br {
    display: none !important;
}