@charset "utf-8";
/* CSS Document */
<style>
div.devpcm {
  background-color: lightgrey;
  padding: 20px;
}

@media screen and (min-width: 601px) {
  div.devpcm {
    font-size: 4vw;
  }
  div.dev1 {
    font-size: 1vw;
  }
  img.img1 {
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 5px;
    width: 150px;
  }
}

@media screen and (max-width: 600px) {
  div.devpcm {
    font-size: 4vw;
  }
  div.dev1 {
    font-size: 2vw;
  }
  img.img1 {
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 5px;
    width: 150px;
  }
}
</style>