body{font-family:Georgia,Times New Roman,Times,serif;background-color:#d3d3d3}h1{text-align:center;color:#789}.inpDiv{display:flex;justify-content:center;align-items:center;margin-top:10px;border:1px solid black;padding:10px}.inpDiv input{margin-left:10px;width:300px;height:30px;border-radius:5px;border:1px solid gray}.inpDiv button{margin-left:10px;width:100px;height:30px;border-radius:5px;border:1px solid gray}