.tips_image {
  width: 500px;
  height: 500px;
  border: 2px solid #eeeeee;
  background-color: #fafafa;
  padding: 10px;
  margin: auto;
}

.tips_image > img {
  width: 100%;
  height: 100%;
  object-fit: cover
}
.tips_image > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover
}

@media only screen and (max-width: 600px) {
  .tips_image {
    width: 300px;
    height: 300px;
  }
}

@media only screen and (max-width: 400px) {
  .tips_image {
    width: 250px;
    height: 250px;
  }
}