:root {
	--ScreenBorderPadding: 4px;
}

* {
	Box-Sizing: Border-Box;
}

Body {
	Margin: 0;
	Padding: var(--ScreenBorderPadding);
	Box-Sizing: Border-Box;
	Width: 100vw;
	Height: 100vh;
}
#Container {
	Box-Sizing: Border-Box;
}

#TopBox {
	Border: 2px Solid Purple;
	Padding: 8px;
}
#LeftBox {
	Float: Left;
	//Border: 2px Solid Purple;
}
#RightBox {
	Position: Inherit;
	Top: 16px;
	Right: 16px;
	Float: Right;
}
#MainBox {
	Text-Align: Center;
	Margin: Auto;
}
#BottomBox {
	Box-Sizing: Border-Box;
	//Border: 2px Solid Purple;
	Position: Fixed;
	Bottom: var(--ScreenBorderPadding);
	Width: 100vw;
}