vue-share-buttons/src/style/index.css

/* Base */
.button-social * {
  box-sizing: border-box;
}

.share-button {
  display: inline-block;
  min-width: 42px;
  min-height: 42px;
  padding: 10px 8px;
  margin: 4px;
  color: #fff;
  background-color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
    "Segoe UI Symbol";
  font-weight: 400;
  vertical-align: top;
  user-select: none;
  border: none;
  border-radius: 4px;
  box-shadow: none;
  text-rendering: auto;
  text-indent: 0px;
  text-align: center;
  letter-spacing: normal;
  word-spacing: normal;
  text-shadow: none;
  transition: color 0.3s ease-in-out, background-color 0.3s ease-in-out,
    border-color 0.3s ease-in-out;
}

.share-button:disabled {
  opacity: 0.9;
}

.share-button:focus {
  outline: none;
}

.share-button:not(:disabled):not(.disabled) {
  cursor: pointer;
}

.share-button:last-child {
  margin-right: 0;
}

.share-button__icon {
  display: inline-block;
  padding: 0 7px;
  margin: 0;
  font-size: 0;
  vertical-align: middle;
}

.share-button__icon:last-child {
  padding: 0;
}

.share-button__text {
  display: inline-block;
  padding: 0 7px;
  font-size: 16px;
  vertical-align: middle;
}

.share-button__counter {
  display: inline-block;
  padding: 3px 10px;
  margin-left: 4px;
  font-size: 12px;
  border-left: 1px solid #fff;
  vertical-align: middle;
}

/* Circle */
.share-button--circle {
  min-width: 42px;
  min-height: 42px;
  padding: 10px;
  border-radius: 42px;
}

/* Outline */
.share-button--outline {
  background-color: transparent;
  border: 1px solid;
}

/* Painted */
.share-button--painted {
  position: relative;
  min-width: 42px;
  min-height: 42px;
  padding: 15px;
  margin-bottom: 30px;
  border-radius: 42px;
  background-color: transparent;
  border: 3px solid;
}

.share-button--painted::before {
  content: "";
  z-index: -1;
  position: absolute;
  top: -1.5px;
  left: -1.5px;
  display: block;
  width: calc(100% + 3px);
  height: calc(100% + 3px);
  background-color: #000;
  border-radius: 50%;
  transform: translate3d(3px, 2px, 0);
  transition: transform 0.2s ease-in-out;
}

.share-button--painted:hover::before {
  transform: translate3d(0, 0, 0);
}

.share-button--painted:focus::before {
  transform: translate3d(0, 0, 0);
}

.share-button--painted .share-button__icon {
  width: 30px;
  height: 30px;
  padding: 0;
}

.share-button--painted .share-button__text {
  display: none;
}

.share-button--painted .share-button__counter {
  position: absolute;
  bottom: -30px;
  right: -7px;
  margin: 0;
  padding: 4px 10px;
  border: 3px solid;
  font-size: 8px;
  border-radius: 15px;
}

.share-button--painted .share-button__counter::before {
  content: "";
  z-index: -1;
  position: absolute;
  top: -1.65px;
  left: -1.5px;
  display: block;
  width: calc(100% + 3px);
  height: calc(100% + 3px);
  border-radius: 15px;
  transform: translate3d(-3px, 1.5px, 0);
  transition: transform 0.2s ease-in-out;
}

.share-button--painted:hover .share-button__counter::before,
.share-button--painted:focus .share-button__counter::before {
  transform: translate3d(0px, 0px, 0);
}

@media (max-width: 768px) {
  .share-button {
    min-width: 38px;
    min-height: 38px;
    padding: 8px 8px;
    margin: 2px;
  }

  .share-button__icon {
    width: 18px;
    height: 18px;
    padding: 0 4px;
  }

  .share-button__text {
    padding: 0 4px;
    font-size: 14px;
  }

  /* Circle */
  .share-button--circle {
    border-radius: 38px;
  }

  /* Painted */
  .share-button--painted {
    min-width: 48px;
    min-height: 48px;
    margin: 4px 4px 20px 4px;
  }

  .share-button--painted::before {
    transform: translate3d(2.5px, 1.5px, 0);
  }

  .share-button--painted .share-button__icon {
    width: 20px;
    height: 20px;
  }

  .share-button--painted .share-button__counter {
    bottom: -24px;
    right: -8px;
    padding: 2px 7px;
  }

  .share-button--painted .share-button__counter::before {
    transform: translate3d(-2px, 1.75px, 0);
  }
}