vega-embed.css

.vega-embed {
  position: relative;
  display: inline-block;
  padding-right: 38px;
}

.vega-embed details:not([open]) > :not(summary) {
  display: none !important;
}

.vega-embed summary {
  list-style: none;
  display: flex;

  position: absolute;
  top: 0;
  right: 0;
  padding: 6px;
  z-index: 1000;

  background: white;
  box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.1);
  color: #1b1e23;
  border: 1px solid #aaa;
  border-radius: 999px;

  opacity: 0.2;
  transition: opacity 0.4s ease-in;

  outline: none;
  cursor: pointer;
}

.vega-embed summary::-webkit-details-marker {
  display: none;
}

.vega-embed details[open] summary {
  opacity: 0.7;
}

.vega-embed:hover summary,
.vega-embed:focus summary {
  opacity: 1 !important;
  transition: opacity 0.2s ease;
}

.vega-embed .vega-actions {
  position: absolute;
  top: 35px;
  right: -9px;

  display: flex;
  flex-direction: column;

  padding-bottom: 8px;
  padding-top: 8px;
  border-radius: 4px;
  box-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.2);
  border: 1px solid #d9d9d9;
  background: white;

  animation-duration: 0.15s;
  animation-name: scale-in;
  animation-timing-function: cubic-bezier(0.2, 0, 0.13, 1.5);
}

.vega-embed .vega-actions a {
  padding: 8px 16px;
  font-family: sans-serif;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  color: #434a56;
  text-decoration: none;
}

.vega-embed .vega-actions a:hover {
  background-color: #f7f7f9;
  color: black;
}

.vega-embed .vega-actions::before,
.vega-embed .vega-actions::after {
  content: "";
  display: inline-block;
  position: absolute;
}

.vega-embed .vega-actions::before {
  left: auto;
  right: 14px;
  top: -16px;

  border: 8px solid #0000;
  border-bottom-color: #d9d9d9;
}

.vega-embed .vega-actions::after {
  left: auto;
  right: 15px;
  top: -14px;

  border: 7px solid #0000;
  border-bottom-color: #fff;
}

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.6);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}