iobroker.heatingcontrol/admin/style.css

HeatingControl Adapter

/* You can delete those if you want. I just found them very helpful */
* {
	box-sizing: border-box
}

.m {
	/* Don't cut off dropdowns! */
	overflow: initial;
}

/* Add your styles here */
.polled {
	height: 100px !important;
}

.adapter-body {
	overflow: auto;
}