.modal_show {
  margin-bottom: 0px !important;
  opacity: 1 !important;
}

#modal {
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
    z-index: 4;
    position: fixed;
    width: calc(100vw - 20px);
    left: 0;
    margin-left: 10px;
    margin-right: 10px;
    bottom: 20px;
    color: #fff;
    padding: 10px 20px;
    border-radius: 4px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-transition: 500ms;
    transition: 500ms;
    margin-bottom: -200px;
    opacity: 0;
  }