#slideout-banner {
  position: fixed;

  /* LEFT SIDE */
  left: -280px;        /* hidden position */
  right: auto;

  /* MOVE UP */
  top: 25%;            /* was 40%, adjust as needed */

  width: 280px;
  transition: left 0.3s ease;
  z-index: 9999;
}

#slideout-banner.open {
  left: 0;             /* slide into view */
}

.slideout-tab {
  position: absolute;
  right: -50px;        /* sticks out from left slideout */
  top: 0;

  width: 50px;
  height: auto;

  cursor: pointer;
  background: none;
  padding: 0;
}

.slideout-tab img {
  display: block;
  max-width: 100%;
  height: auto;
  margin-top: 100px;
}

/* CONTENT */
.slideout-content {
  background: #fff;
  padding: 15px;
}