*, ::after, ::before {
  box-sizing: border-box;
}

html, body, iframe {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

h1, h2, h3, p, ul {
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
}

ul, li {
  list-style: none;
}

i {
  font-style: normal;
  height: 100%;
  display: flex;
  align-items: center;
}