css
.dog-food-calculator .container{max-width:600px;margin:auto;padding:20px;border:1px solid #ccc}.dog-food-calculator .input-group{margin-bottom:10px}.dog-food-calculator .input-group label{display:block;margin-bottom:5px}.dog-food-calculator .input-group input,.dog-food-calculator .input-group select{width:100%;padding:8px;box-sizing:border-box}.dog-food-calculator .results{margin-top:20px}.dog-food-calculator .results div{margin-bottom:10px}