カラム構成のサンプル(Bootstrap)

default.html

<div class="container">
	<div class="row">
		<div class="col-md-8">{{ content }}</div>
		<div class="col-md-4">
			<div class="row">
				<div class="col-md-12 col-sm-4">
					[righttop in desktop]<br>
					[leftbottom in tablet]<br>
					[bottomtop in smartphone]<br>
				</div>
				<div class="col-md-12 col-sm-4">
					[rightmiddle in desktop]<br>
					[centerbottom in tablet]<br>
					[bottommiddle in smartphone]<br></div>
				<div class="col-md-12 col-sm-4">
					[rightbottom in desktop]<br>
					[rightbottom in tablet]<br>
					[bottombottom in smartphone]</div>
			</div>
		</div>
	</div>
</div>