@media only screen and (max-width: 420px) {
  .sec-one-left p {
    font-size: 1.5em;
  }
  .sec-one-left img {
    width: 35px;
  }
  .sec-one-right {
    width: 100%;
  }
  .sec-one-right img {
    width: 100%;
  }
}