.cf_view_markup_field {
    margin: 0px;
}
.cf_code_view .CodeMirror {
    background-color: transparent;
    height: auto;
}
.cf_code_view .CodeMirror-scroll {
    max-height: 300px;
}
.cf_code_view .CodeMirror-cursor { 
    display: none !important;
}