.wpcf7-date{
    width:100%;
  }
  .wpcf7-date:before{
    width:100%;
    content:attr(placeholder);
  }
  .wpcf7-date:hover:before{
    width:0%;
    content:"";
  }
  .wpcf7-date.placeholderclass:before{
    width:0%;
    content:"";
  }