html {
  box-sizing: border-box;
  font-size: 16px;
}

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

body, h1, h2, h3, h4, h5, h6, p, ol, ul {
  margin: 0;
  padding: 0;
  font-weight: normal;
}

ol, ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

body {
  background-color: #000;
  width: 100%;
  height: 100%;
}

main {
  position: relative;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px;
}

.img-main {
  width: 320px;
  object-fit: contain;
}