*, *::before, *::after { box-sizing: border-box; }
html, body { width: 100%; min-height: 100%; margin: 0; }
body, button { font: inherit; }
button { border: 0; }
canvas { display: block; }
h1, h2, p, ol { margin: 0; }
button { -webkit-tap-highlight-color: transparent; }