.review-btn {
    background-color: #000000;
    border-color: #000000;
    border-radius: 30px;
    font-size: 13px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Ubuntu, Arial, sans-serif;
    color: #ffffff;
    text-transform: uppercase;
    margin: 5px 0px;
    padding: 0px 20px;
    letter-spacing: 0.8px;
    position: fixed;
    bottom: 4px;
    right: 10px;
    z-index: 995; }
.review-btn:hover, .review-btn:active, .review-btn:focus {        
    background-color: #000000;
    border-color: #000000;
      outline: none;
      box-shadow: none;
      color: #ffffff;
      text-decoration: none; }

      .review-btn img{
        position: relative;
        top: 8px;
        right: 3px;
      }