#ctxMenu{
    display:none;
    z-index:100;
}
menu {
    position:absolute;
    display:block;
    left:0px;
    top:0px;
    height:20px;
    width:20px;
    padding:0;
    margin:0;
    border:1px solid;
    background-color:white;
    font-weight:normal;
    white-space:nowrap;
}
menu:hover{
    background-color:#eef;
    font-weight:bold;
}
menu > menu{
    position:relative;
    top:-20px;
    left:100%;
    width:55px;
}
menu[title]:before{
    content:attr(title);
}
menu:not([title]):before{
    content:"\2630";
}