.CodeMirror-hints {
    position: absolute;
    z-index: 9999;
    overflow: hidden;
    list-style: none;
    margin: 0;
    padding: 2px;
    border: 1px solid #ccc;
    background: white;
    font-size: 90%;
    font-family: monospace;
    max-height: 20em;
    overflow-y: auto;
}

.CodeMirror-hint {
    margin: 0;
    padding: 0 4px;
    max-width: 19em;
    overflow: hidden;
    white-space: pre;
    color: black;
    cursor: pointer;
}

.CodeMirror-hint-active {
    background: #08f;
    color: white;
}