html,body {
  height: 100%;
  margin: 0;
  padding: 0;
  padding: 1px;
  box-sizing: border-box;
}

#chart-container {
  position: relative;
  height: 100%;
  border: 1px solid #aaa;
  margin: 0.5rem;
  overflow: auto;
  text-align: center;
}

.tooltip {
    position: relative;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 100%;
    background-color: #555;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px 0;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    margin-left: 0;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.tooltip .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #555 transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

.fill-space {
    height: 100%;
    width: 100%;
}


