styles.css

*{
    margin: 0;
    padding: 0;
}

.main-conatiner{
    position: absolute;
    width: 400px;
    height: 300px;
    top: 50%;
    left: 50%;
    margin-top: -200px;
    margin-left: -200px;
    border-radius: 5px;
    box-shadow: 9px 6px 12px 0 rgba(0, 0, 0, 0.5); 
    overflow: hidden;
  background-color: #B53733;
}

  .block-1 {
    position: absolute;
    top: 0;
    left: 0;
    width: 50px;
    height: 100px;
    background: #EA7457;
  }
  .block-1::after{
    content: '';
    position: absolute;
    top: 200px;
    width: 50px;
    height: 100px;
    background-color: #EA7457;
  }

  .block-2 {
    position: absolute;
    top: 50px;
    left: 200px;
    width: 200px;
    height: 250px;
    background: #EA7457;
  }
  .block-2::before{
    content: '';
    position: absolute;
    top: -50px;
    left: 150px;
    width: 50px;
    height: 100px;
    background-color: #B53733;
  }
  .block-2::after{
    content: '';
    position: absolute;
    top: 150px;
    left: 150px;
    width: 50px;
    height: 100px;
    background-color: #B53733;
  }