* {
  margin: 0;
  padding: 0;
}

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

html,
body {
  position: relative;
}

html {
  overflow-y: scroll;
}

a {
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

img {
  max-width: 100%;
}