*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 0; }
section { scroll-margin-top: 0; }
img, video { max-width: 100%; display: block; }
button { font: inherit; border: none; background: none; cursor: none; }
a { color: inherit; }
ul { list-style: none; }