* {
  box-sizing: border-box;
}
html, body {
  padding: 0;
  margin: 0;
}
h1, h2, h3, h4, h5, h6,
p {
  margin: 0;
}
ul, li {
  list-style: none;
  margin: 0;
  padding: 0;
}
a {
  text-decoration: none;
}