action-btns.html

<button class="buttons">
  <img class="buttons__image" src="img/common/messages.svg" alt="">
  <ul class="buttons__wrapper">
    <li>
      <a class="buttons__link" href="#">
        <span>
          Чат в Telegram
        </span>
        <img src="img/common/tg.svg" alt="">
      </a>
    </li>
    <li>
      <a class="buttons__link" href="#">
        <span>
          Чат в WhatsApp
        </span>
        <img src="img/common/wh.svg" alt="">
      </a>
    </li>
    <li>
      <a class="buttons__link">
        <span>
          Заказать звонок
        </span>
        <img src="img/common/phone.svg" alt="">
      </a>
    </li>

  </ul>
</button>

action-btns.scss

.buttons {
  position: fixed;
  right: 60px;
  bottom: 60px;

  &__image {
    display: block;
    border-radius: 50%;
    transition: box-shadow 0.2s;
    cursor: pointer;

    &:hover {
      box-shadow: 0px 0px 8px rgba($white, 0.4);
    }
  }



  &__wrapper {
    position: absolute;
    right: 0;
    bottom: 0;
    z-index: -1;
    padding-bottom: 70px;
    padding-right: 10px;
    min-width: 200px;

    li {
      transition: all 0.2s;
      opacity: 0;

      &:not(:last-child) {
        margin-bottom: 10px;
      }

      span {
        margin-right: 10px;
        padding: 6px;
        font-size: 12px;
        background-color: $grey;
        border-radius: 5px;
        line-height: 1;
        transform: scaleX(0);
        opacity: 0;
        transition: all 0.2s;
        transform-origin: center right;
      }

      &:hover {
        span {
          opacity: 1;
          transform: scaleX(1);
        }
      }

      &.visible {
        opacity: 1;
      }
    }

  }

  &__link {
    display: flex;
    align-items: center;
    justify-content: flex-end;
  }
}