.caja_share{
    /*border: 1px solid yellow;*/
    position: fixed;
    bottom: 200px;
    right: 20px;
    width: 40px;
    height: 40px;
    z-index: 100000;
  }
  .caja_share:hover{
    height: 200px;
    cursor: pointer;
  }

  .caja_share:hover .caja_email{
    visibility: visible;
    bottom: 40px;
  }
  .caja_share:hover .caja_whatsapp{
    visibility: visible;
    bottom: 80px;
  }
  .caja_share:hover .caja_twitter{
    visibility: visible;
    bottom: 120px;
  }
  .caja_share:hover .caja_facebook{
    visibility: visible;
    bottom: 160px;
  }
  .btn_share{
    position: absolute;
    bottom:0 ;
    right: 0;
    background-color: #fff;
    color: #fff;
    box-shadow: 0px 1px 10px rgba(0, 0, 0, 0.4);
    transition: all 500ms ease;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    z-index: 90090; 
    display: flex;
    align-content: center;
    justify-content: center;
    text-align: center;
    align-items: center;
  }
  .btn_share:hover{
    transform: rotate(360deg);
    transition: all 1000ms ease;
    color: #333;
  }
  .caja_facebook{
    position: absolute;
    bottom: 0;
    right: 0;
    border:1px solid #fefefe;
    background: #fefefe;
    color: #fff;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    z-index: 90080; 
    display: flex;
    align-content: center;
    justify-content: center;
    text-align: center;
    align-items: center;
    transition: all .5s;
    visibility: hidden;
    transition: all 1s;
   
  }
  .caja_facebook:hover{
    cursor: pointer;
    color: #333;
    opacity: 0.8;
    box-shadow: 0px 1px 10px rgba(0, 0, 0, 0.4);
  }
 .caja_twitter:hover{
    cursor: pointer;
    color: #333;
    opacity: 0.8;
    box-shadow: 0px 1px 10px rgba(0, 0, 0, 0.4);
  }
.caja_whatsapp, .caja_email:hover{
    cursor: pointer;
    color: #333;
    opacity: 0.8;
    box-shadow: 0px 1px 10px rgba(0, 0, 0, 0.4);
  }
  .caja_email:hover{
    cursor: pointer;
    color: #fefefe;
    opacity: 0.8;
    box-shadow: 0px 1px 10px rgba(0, 0, 0, 0.4);
  }

  .caja_twitter{
    position: absolute;
    bottom: 0;
    right: 0;
    border:1px solid #fefefe;
    background: #fefefe;
    color:#fff;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    z-index: 9070; 
    display: flex;
    align-content: center;
    justify-content: center;
    text-align: center;
    align-items: center;
    visibility: hidden;
    transition: all 1s;
  }
  .caja_whatsapp{
    position: absolute;
    bottom: 0;
    right: 0;
    border:1px solid #fefefe;
    background: #fefefe;
    color:#fff;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    z-index: 9070; 
    display: flex;
    align-content: center;
    justify-content: center;
    text-align: center;
    align-items: center;
    visibility: hidden;
    transition: all 1s;
  }
  .caja_email{
    position: absolute;
    bottom: 0;
    right: 0;
    border:none;
    background:#fefefe;
    color:#fff;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    z-index: 9070; 
    display: flex;
    align-content: center;
    justify-content: center;
    text-align: center;
    align-items: center;
    visibility: hidden;
    transition: all 1s;
  }


  @media screen and (max-width: 380px) {
    .caja_share{
        bottom: 220px;
    }
  }

  @media screen and (max-width: 320px) {
    .caja_share{
        bottom: 290px;
    }
  }