.sticky-sentinel { height: 1px; }

.article-sticky-banner{
  background:#fff;
  z-index:1000;
}

.article-sticky-banner.is-fixed{
  position:fixed;
  top:0;

  z-index:9999;
  box-shadow:0 2px 10px rgba(0,0,0,.12);
}

.article-sticky-banner img{
  display:block;
  max-width:100%;
  height:auto;
}


.placeholder{ height:0; }