.curtain {
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    z-index: 9999;
    background-color: white;
}

.loader {
  border: 16px solid #e5cdc3;
  border-radius: 50%;
  border-top: 16px solid #b27887;
  width: 120px;
  height: 120px;
  -webkit-animation: spin 2s linear infinite; /* Safari */
  animation: spin 2s linear infinite;
  position: absolute;
  left: calc(50% - 60px);
  top: calc(50% - 60px);
}

/* Safari */
@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.popup {
    background: darkgreen;
    color: white;
    font-weight: bold;
    width: 50%;
    margin-left: 25%;
    margin-bottom: 10px;
    text-align: center;
    padding: 10px;
    border-radius: 4px;
}

.hidden {
    display: none;
}

.bold {
    font-weight: bold;
}

.highlight {
    border-color: red;
}

table.scroll {
    border-spacing: 0;
}

table.scroll tbody,
table.scroll thead,
table.scroll tfoot {
    display: block;
}

table.scroll tbody {
    overflow-y: auto;
    overflow-x: hidden;
}