The header does not render properly when using the datetime picker in a scollable page.

[dimsavva]

trafficstars

Consider removing position: relative; in the following css

.ui.calendar .ui.table tr:first-child th { position: relative; padding-left: 0; padding-right: 0; }

[lubber-de]

The calendar module was merged into https://github.com/fomantic/Fomantic-UI and is further maintained there. However, i cannot reproduce your issue, could you please provide a jsfiddle for easier investigation and being able to reproduce? What exactly is meant by "not render properly" ?