.Physical-modeling-method{width:120px; height:310px ;}.Ball-motion-modeling{width:135px; height:137px ;}.Light-beam-modeling{width:171px; height:93px ;}.Modeling-seeing-object{width:133px; height:102px ;}.Parachutist-modeling{width:120px; height:147px ;}.Modeling-body-pushing{width:169px; height:102px ;}