documize/gui/app/styles/layout/layout-master.scss

.layout-header,
.layout-footer {
	flex: 0 0 auto;
}

.layout-body {
	display: flex;
	flex: 1 0 auto;
	flex-direction: column;
	padding: 2rem;
}

.layout-content {
	margin-top: 2rem;
}

.layout-sidebar {
	order: -1;
	background-color: $color-gray-light2;
	padding: 1rem;
}

footer {
	margin: auto auto 0 auto;
	position: sticky;
    bottom: 0;
}

@media (min-width: 720px) {
	.layout-body {
		flex-direction: row;
	}

	.layout-content {
		// Content area cannot exceed 1200px
		// but can shrink as required
		// (was flex: 1;).
		flex: 0 1 1000px;
		// flex: 1;

		padding: 0 2rem;
		margin: 0;
	}

	.layout-sidebar {
		flex: 0 0 20rem;
		// height: calc(100vh - 145px);
		overflow-x: hidden;
		overflow-y: auto;
	}
}

@media (min-width: 1200px) {
	.layout-sidebar {
		flex: 0 0 30rem;
	}

	.layout-content {
		padding: 0 2rem 0 3rem;
	}
}

@media (min-width: 1800px) {
	.layout-sidebar {
		flex: 0 0 35rem;
	}

	.layout-content {
		padding: 0 2rem 0 4rem;
	}
}

@media (max-width: 576px) {
	footer {
		position: relative;
		bottom: auto;
	}
}