fediparty/themes/starter/source/assets/scss/modules/_buttons.scss

/* share buttons https://github.com/distributopia/share-connect-support */

.dex-btn,
.popup button {
  cursor: pointer;
}

.dex-btn {
  width: 30px;
  height: 30px;
  line-height: 1.6;
  text-align: center;
  text-decoration: none;
  font-size: .85rem;
  margin: 4em .4em 0;
  border: none;
  padding-top: 4px;
  background: black;
  padding: 8px;
  border-radius: 50%;
  display: inline-block;
}

.i-sidebar .dex-btn {
  background: transparent;
  padding: 0;
  border-radius: 0;
  display: initial;
  margin: .1em 0;
}

.dex-btn span,
.i-sidebar .dex-icon {
  vertical-align: middle;
}

.dex-btn,
.dex-btn span {
  font-weight: bold;
}

.share {
  max-height: 40px;
  display: inline-block;
}

.i-sidebar .share {
  display: block;
}

.dex-icon {
  vertical-align: top;
  fill: $golden;
  width: 13px;
  height: 13px;
}

.i-sidebar .dex-icon {
  fill: $white;
  width: 16px;
  height: 16px;
}

.overlay,
.hidden,
.hidden + .popup {
  display: none;
}

.hidden:checked + .popup {
  position: absolute;
  min-width: 265px;
  padding: .4em;
  z-index: $zIndex--3;
  background-color: rgba($white, .25);
  display: inline-block;
  margin-left: -2.5em;
}

.i-sidebar .hidden:checked + .popup {
  margin-left: 2em;
}

.popup input {
  height: 25px;
  min-width: 200px;
}

.popup button {
  margin: 2.5px 0 2.5px 5px;
  height: 28px;
  width: 44px;
}

.i-sidebar .popup label {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  background-color: rgba(0, 0, 0, .5);
}