jsoneditor/src/css/autocomplete.css

A web-based tool to view, edit, format, and validate JSON

div.jsoneditor div.autocomplete.dropdown {
    position: absolute;
    background: white;
    box-shadow: 2px 2px 12px rgba(128, 128, 128, 0.3);
    border: 1px solid #d3d3d3;
    z-index: 100;
    overflow-x: hidden;
    overflow-y: auto;
    cursor: default;
    margin: 0;
    padding-left: 2pt;
    padding-right: 5pt;
    text-align: left;
    outline: 0;
    font-family: "dejavu sans mono", "droid sans mono", consolas, monaco, "lucida console", "courier new", courier, monospace, sans-serif;
    font-size: 10pt;
}

div.jsoneditor div.autocomplete.dropdown .item {
    color: #333;
}

div.jsoneditor div.autocomplete.dropdown .item.hover {
    background-color: #ddd;
}

div.jsoneditor div.autocomplete.hint {
    color: #aaa;
    top:4px;
    left:4px;
}