@media only screen and (max-width: 1080px) {
    #leftMenu {
        width: 300px !important;
        margin-right: 0!important;
    }
    
    #rightMenu {
		width:	calc(100% - 320px);
	}
}

@media only screen and (max-width: 800px) {
    #rightMenu {
		width: 100%;
	}
}