.loading-state {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}
.loading {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 10px solid #ddd;
  border-top-color: blue;
  animation: loading 1s linear infinite;
}
@keyframes loading {
  to {
    transform: rotate(360deg);
  }
}

.action {
 margin: 16px;
}

/* Tooltip container */
.tooltip {
  position: relative;
  display: inline-block;
}

/* Tooltip text */
.tooltip .tooltiptext {
  visibility: hidden;
  width: 500px;
  background-color: black;
  color: #fff;
  text-align: left
  padding: 5px 0;
  border-radius: 6px;
 
  /* Position the tooltip text - see examples below! */
  position: absolute;
  z-index: 999;
  bottom: 100%;
  left: 50%;
  margin-left: -500px; /* Use half of the width (120/2 = 60), to center the tooltip */
}

/* Tooltip text */
.tooltip .tooltiptext_under {
  visibility: hidden;
  width: 500px;
  background-color: black;
  color: #fff;
  text-align: left;
  font-weight: normal;
  padding: 5px 0;
  border-radius: 6px;
 
  /* Position the tooltip text - see examples below! */
  position: absolute;
  z-index: 999;
  top: 100%;
  left: 50%;
  margin-left: -30px; /* Use half of the width (120/2 = 60), to center the tooltip */
}

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

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

.dropdown-reference {
  display: none;
  position: absolute;
  background-color: #f6f6f6;
  min-width: 230px;
  overflow: auto;
  border: 1px solid #ddd;
  z-index: 1;
}

.dropdown-reference a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}

.dropdown-reference a:hover {background-color: #ddd;}