@media only screen
	and (min-device-width:300px)
	and (max-device-width:1000px){
		/*style*/
		body{background:yellow;font-size:20px;color:blue;display:flex;
       flex-direction: column-reverse;
        text-align:center;}
	}
	@media only screen
	and (min-device-width:300px)
	and (max-device-width:1000px){
		/*style*/
		#sidebar{background:black;font-size:30px;color:green;}
	}