.b1 { width: 14vw; height: 5vw; border-radius: 100% 100% 100% 100%; background-color: #FED6C0; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-200%) rotate(45deg); margin: 0 auto; z-index: 6; overflow: hidden; }

.b2 { width: 14vw; height: 5vw; border-radius: 100% 100% 100% 100%; background-color: #FDC3B5; position: absolute; top: 50%; left: 50%; transform: translate(-150%,-200%) rotate(45deg); margin: 0 auto; z-index: 6; }

.b3 { width: 14vw; height: 5vw; border-radius: 100% 100% 100% 100%; background-color: #FDB793; position: absolute; top: 50%; left: 50%; transform: translate(50%,-200%) rotate(45deg); margin: 0 auto; z-index: 6; }