<div class="at-about-fab">
  <div class="at-about-fab__thumbnail">
    <img alt="Fiat Professional" src="https://fiatprofessionaleastlondon.co.za/wp-content/uploads/2018/02/CallUs.png" />
  </div>
  <div class="at-about-fab__meta">
    <h2>Call Us Now</h2>
    <p><a href="te:555-555-5555">555 555 5555</a></p>
  </div>
</div>

.at-about-fab {
  z-index: 999999;
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: flex;
  align-items: center;
  flex-direction: row;
  transform: translateX(100%);
  transition: 0.2s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  &:before {
    content: "";
    position: absolute;
    display: block;
    top: 50%;
    left: -58px;
    width: 58px;
    height: 48px;
    transform: translateY(-50%);
  }

  &:hover {
    transform: translateX(0%);

    .at-about-fab__meta {
      opacity: 1;
    }
  }

  &__thumbnail {
    position: absolute;
    top: 50%;
    left: -58px;
    background: #FFFFFF;
    width: 48px;
    height: 48px;
    border: 1px solid #EEEEEE;
    border-radius: 100%;
    padding: 4px;
    box-sizing: border-box;
    transform: translateY(-50%);
    overflow: hidden;
    cursor: pointer;

    img {
      display: block;
      width: 100%;
      border-radius: 100%;
    }
  }

  &__meta {
    font-family: 'Open Sans', sans-serif;
    opacity: 0;
    transition: 0.2s ease;

    h2,
    p {
      margin: 0;
      padding: 0;
    }

    h2 {
      color: #444444;
      font-size: 14px;
      font-weight: 600;
    }

    p {
      color: #CCCCCC;
      font-size: 12px;
      font-weight: 400;
    }

    a {
      color: inherit;
      font-weight: 400;
      text-decoration: none;
    }
  }
}