/* Tooltip container */
.tooltip {
    position: relative;
    display: inline-block;
    /*border-bottom: 1px dotted black; /* If you want dots under the hoverable text */
}

/* Tooltip text */
.tooltip .tooltiptext {
    visibility: hidden;
    width: 220px;
    height:auto;
    background-color: #65EC82;
    color: #000000;
    text-align: left;
    padding: 5px 5px 5px 5px;
    border-radius: 6px;
    font:bold 12pt arial;
    white-space: pre;
    white-space: pre-wrap;      /* CSS3 */   
    white-space: -moz-pre-wrap; /* Firefox */    
    white-space: -pre-wrap;     /* Opera <7 */   
    white-space: -o-pre-wrap;   /* Opera 7 */    
    word-wrap: break-word;      /* IE */
    
    /* Position the tooltip text - see examples below! */
    position: absolute;
    z-index: 1;
}

/* Show the tooltip text when you mouse over the tooltip container */
.tooltip:hover .tooltiptext {
    visibility: visible;
}