#point21 { margin: 185px 0 0 0; width: 375px; height: 140px; background: #cfe7da; }
#point22 { margin: 51em 0 0 375px; width: 95px; height: 125px; background: #f9f2e6; }
#point31 { margin: 0; }
#point32 { margin: 37em 0 0 0; }
#btnback { margin: 52em 0 0 625px; }