body {
                    text-align: center;
                }
                
                textarea {
                    width: 32%;
                    float: top;
                    min-height: 250px;
                    overflow: scroll;
                    margin: auto;
                    display: inline-block;
                    background: #F4F4F9;
                    outline: none;
                    font-family: Courier, sans-serif;
                    font-size: 14px;
                }
                
                iframe {
                    bottom: 0;
                    position: relative;
                    width: 100%;
                    height: 35em;
                }