html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}
#code {
    width: 50%;
    height: 100%;
    margin: 0;
    padding: 10px;
    background-color: #1F1F1F;
    font-family: Consolas, Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono, Bitstream Vera Sans Mono, Courier New, monospace, serif;
    color: #CCCCCC;
    position: absolute;
    border: none;
    resize: none;
    outline: none;
    font-family: monospace;
    font-size: 14px;
    box-sizing: border-box;
}
#preview {
    width: 50%;
    margin: 0;
    padding: 0;
    position: absolute;
    left: 50%;
    height: 100%;
    background-color: white;
    border: none;
}
.switch-container {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background-color: #1F1F1F;
    color: #CCCCCC;
    padding: 5px 10px;
    border-radius: 5px;
}