FR: scrollable tables with sticky headers

[avamsi]

Prework

• Read and abide by the great_tables code of conduct and contributing guidelines.
• Search for duplicates among the existing issues (both open and closed).

Proposal

I started using great-tables in Jupyter Notebooks recently and would love to have a knob to make large tables scrollable natively with sticky headers, so it's easier to parse the data. I didn't find any similar open issues but #578.

[avamsi]

A workaround I'm using at the moment is to inject some custom CSS like:

%%html

<style>
.gt_table {
    display: block !important;
    max-height: 80vh;
    overflow-y: auto;
}

.gt_col_headings {
    position: sticky;
    top: 0;
}
</style>