html {
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  box-sizing: border-box;
}
*, *::before, *::after {
  box-sizing: inherit;
}
body, h1, h2, h3, p, ul, ol {
  margin: 0;
  padding: 0;
}
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; }