* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: #121212;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: row;
}

#mainContainer {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

#mainContainer img {
  width: 25%;
  height: auto;
}