@import url(https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap);
*{box-sizing:border-box}body{background-color:#f5f5f5;font-family:"Roboto",sans-serif;display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;margin:0}canvas{border:2px solid #4682b4}.toolbox{background-color:#4682b4;border:1px solid #6a5acd;display:flex;width:804px;padding:1rem}.toolbox>*{background-color:#fff;border:none;display:inline-flex;align-items:center;justify-content:center;font-size:2rem;height:50px;width:50px;margin:.25rem;padding:.25rem;cursor:pointer}.toolbox>*:last-child{margin-left:auto}