form {
    max-width: 600px;
    margin: 20px auto;
}

input, textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}
fieldset#rich-text-editor {
    max-height: 100%;
    overflow: auto;
}
div#create-novel-form * {
    box-sizing: border-box;
}