.editor-area 
{
    max-width: 100%;
    min-height: 400px;
    height: auto;
    display: block;
    margin: 10px 0;
    padding: 10px;
    border: 1px solid #888;
}
  
button.active 
{
    font-weight: bold;
    background-color: #aaa;
}

#code
{
    min-height: 400px;
    margin: 10px 0;
    padding: 10px;
    border: 1px solid #888;
    white-space: pre-wrap;
}

.editor-area a
{
    color: #0D6EFD;
    text-decoration: underline;
}