la.css

.la {
  position: relative;
  width: 100%;
  height: 100%;
}
.la-block {
  box-sizing: border-box;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  overflow: hidden;
  text-align: center;
  position: relative;
}
.la-block a.la-remove {
  position: absolute;
  top: 1em;
  right: 1em;
  display: none;
  border: solid 1px rgba(0, 0, 0, 0);
  text-decoration: none;
  color: #000;
  border-radius: 6px;
  width: 20px;
  text-align: center;
}
.la-block a.la-remove svg {
  fill: #999;
  pointer-events: none;
}
.la-block a.la-remove:hover {
  border: solid 1px #999;
}
.la-block:hover a.la-remove {
  display: block;
}
.la-block a.la-left,
.la-block a.la-right,
.la-block a.la-top,
.la-block a.la-bottom {
  opacity: 0.3;
  position: absolute;
  box-sizing: border-box;
  border: solid 1px #999;
}
.la-block a.la-left:hover,
.la-block a.la-right:hover,
.la-block a.la-top:hover,
.la-block a.la-bottom:hover {
  opacity: 1;
  background: #000;
}
.la-block a.la-left {
  top: 0;
  left: 0;
  height: 100%;
  width: 10px;
}
.la-block a.la-right {
  top: 0;
  right: 0;
  height: 100%;
  width: 10px;
}
.la-block a.la-top {
  top: 0;
  left: 0;
  width: 100%;
  height: 10px;
}
.la-block a.la-bottom {
  bottom: 0;
  left: 0;
  width: 100%;
  height: 10px;
}
.la-children {
  display: grid;
  height: 100%;
  padding: 1em;
}
.la-name {
  position: absolute;
  bottom: 1.5em;
  left: 1.5em;
  font-size: 0.8em;
}
.la-selector {
  box-sizing: border-box;
}
.la-selector a {
  box-sizing: border-box;
  text-decoration: none;
  color: #000;
  display: block;
  width: 100%;
  padding: 0.4em;
}
.la-selector a:hover {
  background-color: #e2e2e2;
}