.erd table {
    border-collapse: collapse;
}

/* DRAWING AREA */
.erd .drawing-area {
    position: absolute;
    top: 0;
    left: 0;
    height: 3000px;
    width: 3000px;
}


/* CONNECTORS */
.erd .fk-connector {
    stroke: #ff0000;
    fill: none;
    stroke-width: 1 
}        

/* DB TABLES */
.erd .db-table {
    position: absolute;
    width: 300px;
}
.erd .db-table tr {
    line-height: 24px;
    border-bottom: 1px dashed #cecece;
}
.erd .db-table td {
    padding: 0px 5px 0px 5px;
    overflow: ellipsis;
    box-sizing: border-box;
}
.erd .db-table .table-name {
    background: #1f75e0;
    color: white;
    font-weight: bold;
    cursor: pointer;
}
.erd .db-table .field {
    background: #f0f0f0f0;
    cursor: default;
}


/* https://medium.freecodecamp.org/a-step-by-step-guide-to-making-pure-css-tooltips-3d5a3e237346 */

[tooltip]{
  margin:20px;
  position:relative;
}
[tooltip]::before {
    content: "";
    position: absolute;

    left:100%;
    top:50%;
    margin-left:1px;
    transform:translateY(-50%) rotate(90deg);
    
    
    border-width: 7px 7px 0 7px;
    border-style: solid;
    border-color: #333 transparent transparent     transparent;
    z-index: 99;
    opacity:0;    
}
[tooltip]::after {
    content: attr(tooltip);
    position: absolute;
    
    left:100%;
    top:50%;
    margin-left:11px;
    transform: translateX(0%)   translateY(-14px);
    
    background: #333;
    text-align: left;
    color: #fff;
    padding: 4px 7px 4px 7px;
    font-size: 12px;
    width: 300px;
    border-radius: 5px;
    pointer-events: none;
    
    z-index:99;
    opacity:0;    
}


[tooltip]:hover::after,[tooltip]:hover::before {
   opacity:1
}