#webviews {
  height: calc(100vh - 36px - var(--control-space-top));
  position: relative;
}

.arrow-indicator {
  width: 140px;
  height: 140px;
  border-radius: 70px;
  background: #000;
  position: fixed;
  top: 50%;
  z-index: 1;
  opacity: 0;
  visibility: hidden;
}
/* use a separate class to avoid an issue where the arrow sometimes appears briefly on startup beginning in Chromium 61 */
.arrow-indicator.animating {
  transition: opacity 0.3s, visibility 0.3s;
}
.arrow-indicator.shown {
  opacity: 0.6;
  visibility: visible;
}
#leftArrowContainer {
  left: -70px;
}
#rightArrowContainer {
  right: -70px;
}

.arrow {
  color: white;
  font-size: 40px !important;
  margin-top: 50px;
}
#leftArrow {
  float: right;
  margin-right: 15px;
}
#rightArrow {
  float: left;
  margin-left: 15px;
}

#webview-placeholder {
  width: 100%;
  height: 100%;
  /* the built-in blur() function creates white edges around the image, avoid this by using an SVG filter. Source:
	https://codepen.io/tigt/post/fixing-the-white-glow-in-the-css-blur-filter#comment-id-6373
	https://jsbin.com/kupaqa/edit?html,css,output
	*/
  filter: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='a' x='0' y='0' width='100%' height='100%' color-interpolation-filters='sRGB'%3E%3CfeGaussianBlur stdDeviation='6' /%3E%3CfeComponentTransfer%3E%3CfeFuncA type='discrete' tableValues='1 1'/%3E%3C/feComponentTransfer%3E%3C/filter%3E %3C/svg%3E#a");
  background: #fff;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
}
