body{
  width: 100%;
  height: 100vh;
  background: linear-gradient(rgba(0,0,0,.9), transparent),
  url("./img/Shell-271.jpg") bottom no-repeat;
  background-size: cover;
  display: flex;
  flex-direction: column;
  text-align: center;
  position: relative;
}
.container {
  display: flex;
  justify-content: center;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  
}

.image {
  width: 30%;
  max-width: 100px;
  margin: 10px;
}

@media screen and (max-width: 600px) {
  .image {
    width: 100%;
  }
  .container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    
    
  }
}