* {
  margin: 0;
  padding: 0;
}
body, html {
  width: 100%;
  height: 100%;
  overflow: auto;
}
.container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: #f9f9f9;
}
.container img {
  width: 100%;
  height: auto;
}