ace-code-editor/lib/ace/ext/menu_tools/settings_menu.css

Ajax.org Code Editor is a full featured source code highlighting editor that powers the Cloud9 IDE

#ace_settingsmenu, #kbshortcutmenu {
    background-color: #F7F7F7;
    color: black;
    box-shadow: -5px 4px 5px rgba(126, 126, 126, 0.55);
    padding: 1em 0.5em 2em 1em;
    overflow: auto;
    position: absolute;
    margin: 0;
    bottom: 0;
    right: 0;
    top: 0;
    z-index: 9991;
    cursor: default;
}

.ace_dark #ace_settingsmenu, .ace_dark #kbshortcutmenu {
    box-shadow: -20px 10px 25px rgba(126, 126, 126, 0.25);
    background-color: rgba(255, 255, 255, 0.6);
    color: black;
}

.ace_optionsMenuEntry:hover {
    background-color: rgba(100, 100, 100, 0.1);
    -webkit-transition: all 0.5s;
    transition: all 0.3s
}

.ace_closeButton {
    background: rgba(245, 146, 146, 0.5);
    border: 1px solid #F48A8A;
    border-radius: 50%;
    padding: 7px;
    position: absolute;
    right: -8px;
    top: -8px;
    z-index: 1000;
}
.ace_closeButton{
    background: rgba(245, 146, 146, 0.9);
}
.ace_optionsMenuKey {
    color: darkslateblue;
    font-weight: bold;
}
.ace_optionsMenuCommand {
    color: darkcyan;
    font-weight: normal;
}