body {
padding:4px;
}
.mmm {
width:180px;
background-color:#FFFFCC;
position:relative;
float:left;
text-decoration:underline;
font-size:1.04em;

}
.mmmInner {
visibility:hidden;
display:none;
position:absolute;
background-color:ivory;
width:300px;
overflow:visible;
font-size:.95em;
padding:4px;
overflow:auto;
max-height: 320px;
}