Сергей Ержович

<div class="card">
    <img src="https://hsto.org/webt/62/20/e0/6220e03be7247161494475.jpeg" alt="background">
  </div>

.card {
  display: flex;
  justify-content: center;
}

<div class="card">
    <img src="https://hsto.org/webt/62/20/e0/6220e03be7247161494475.jpeg" class="back" alt="background">
  </div>

.back {
  display: flex;
  margin: auto;
}