h1 {
    color: red;
}
h2 {
    color: blue;
}
.base-iframe {
    display: flex;
    flex-direction: row;
    width: 100vw;
    height: 100vh;
  }
  .left-iframe {
    width: 20%;
  }
  .right-iframe {
    width: 80%;
    overflow: auto;
  }