.drop-box{width:200px;height:300px;border:2px dashed #ccc;border-radius:5px;padding:8px;box-sizing:border-box}#app,.drop-box{text-align:center}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#2c3e50;margin-top:60px}