.ol-control.ol-imageline {
  bottom:0;
  left: 0;
  right: 0;
  padding: 0;
  overflow: visible;
  transition: .3s;
  border-radius: 0;
}
.ol-control.ol-imageline.ol-collapsed {
  transform: translateY(100%);
}
.ol-imageline > div {
  height: 4em;
  position: relative;
  white-space: nowrap;
  scroll-behavior: smooth;
  overflow: hidden;
  width: 100%;
}
.ol-imageline > div.ol-move {
  scroll-behavior: unset;
}

.ol-control.ol-imageline button {
  position: absolute;
  top: -1em;
  transform: translateY(-100%);
  margin: .65em;
  box-shadow: 0 0 0 0.15em rgba(255,255,255,.4);
}
.ol-control.ol-imageline button:before {
  content: '';
  position: absolute;
  transform: translate(-50%, -50%) rotate(135deg);
  top: 40%;
  left: 50%;
  width: .4em;
  height: .4em;
  border: .1em solid currentColor;
  border-width: .15em .15em 0 0;
}
.ol-control.ol-imageline.ol-collapsed button:before {
  top: 60%;
  transform: translate(-50%, -50%) rotate(-45deg);
}

.ol-imageline,
.ol-imageline:hover {
  background-color: rgba(0,0,0,.75);
}

.ol-imageline.ol-arrow:after,
.ol-imageline.ol-arrow:before {
  content: "";
  position: absolute;
  top: 50%;
  left: .2em;
  border-color: #fff #000;
  border-width: 1em .6em 1em 0;
  border-style: solid;
  transform: translateY(-50%);
  z-index: 1;
  opacity: .8;
  pointer-events: none;
  box-shadow: -0.6em 0 0 1em #fff;
}
.ol-imageline.ol-arrow:after {
  border-width: 1em 0 1em .6em;
  left: auto;
  right: .2em;
  box-shadow: 0.6em 0 0 1em #fff;
}
.ol-imageline.ol-scroll0.ol-arrow:before {
  display: none;
}
.ol-imageline.ol-scroll1.ol-arrow:after {
  display: none;
}


.ol-imageline .ol-image {
  position: relative;
  height: 100%;
  display: inline-block;
  cursor: pointer;
}
.ol-imageline img {
  max-height: 100%;
  border: .25em solid transparent;
  box-sizing: border-box;
  opacity: 0;
  transition: 1s;
}
.ol-imageline img.ol-loaded {
  opacity:1;
}

.ol-imageline .ol-image.select {
  background-color: #fff;
}
.ol-imageline .ol-image span {
  position: absolute;
  width: 125%;
  max-height: 2.4em;
  left: 50%;
  bottom: 0;
  display: none;
  color: #fff;
  background-color: rgba(0,0,0,.5);
  font-size: .8em;
  overflow: hidden;
  white-space: normal;
  text-align: center;
  line-height: 1.2em;
  transform: translateX(-50%) scaleX(.8);
}
/*
.ol-imageline .ol-image.select span,
*/
.ol-imageline .ol-image:hover span {
  display: block;
}