body {
  background-color: #267a18;
}

.img {
  text-align: center;
  display: block;
  margin: 90px 0px 90px 0px;
  margin-left: auto;
  margin-right: auto;
  height: 200px;

}

@media (max-width:700px) {
  .img {
    display: block;
    margin-left: auto;
    margin-right: auto;

    text-align: center;

  }

}