heatMap.css

.names {
    fill: none;
    stroke: #fff;
    stroke-linejoin: round;
    }
  
    /* Tooltip CSS */
.d3-tip {
    line-height: 1.5;
    font-weight: 400;
    font-family:"avenir next", Arial, sans-serif;
    padding: 6px;
    background: rgba(0, 0, 0, 0.6);
    color: #FFA500;
    border-radius: 1px;
    pointer-events: none;
    }

    /* Creates a small triangle extender for the tooltip */
.d3-tip:after {      
    box-sizing: border-box;
    display: inline;
    font-size: 8px;
    width: 100%;
    line-height: 1.5;
    color: rgba(0, 0, 0, 0.6);
    position: absolute;
    pointer-events: none;
    
    }

    /* Northward tooltips */
.d3-tip.n:after {
    content: "\25BC";
    margin: -1px 0 0 0;
    top: 100%;
    left: 0;
    text-align: center;
    }

    /* Eastward tooltips */
.d3-tip.e:after {
    content: "\25C0";
    margin: -4px 0 0 0;
    top: 50%;
    left: -8px;
    }

    /* Southward tooltips */
.d3-tip.s:after {
    content: "\25B2";
    margin: 0 0 1px 0;
    top: -8px;
    left: 0;
    text-align: center;
    }

    /* Westward tooltips */
.d3-tip.w:after {
    content: "\25B6";
    margin: -4px 0 0 -1px;
    top: 50%;
    left: 100%;
    }

/*    text{
    pointer-events:none;
    }*/

.details{
    color:white;
    }