.block_td {
  height:25px;
}
.block_container {
  position:relative;
  box-sizing: border-box;
  height: 25px;
  padding: 0px;
  margin: 0px;
  margin-left: 1em;
}
.block_label {
  position: absolute; 
  display: inline-block;
  padding: 3px;
  z-index: 4;
  top: 6px;
  height: 12px;
  line-height: 12px;
  font-size: 12px;
  background-color: white;
  border: 1px solid black;
  -moz-border-radius: 12px;
  -webkit-border-radius: 12px;
  border-radius: 12px;
  transform: translateX(-50%);
}
.block_motif {
  position: absolute; 
  z-index: 3;
  top: 0px;
  box-sizing: border-box;
  border: 1px solid black;
  height: 12px;
  background-color: cyan;
}
.block_motif.top {
  border-bottom-width: 0;
}
.block_motif.bottom {
  border-top-width: 0;
}
.block_motif.scanned_site {
  opacity: 0.3;
}
.block_motif.scanned_site.active {
  opacity: 0.9;
}
.block_region {
  position:absolute; 
  z-index:6; 
  height:25px; 
  top:0px; 
}
.block_region.main {
  z-index:8;
}
.block_region.scanned_site {
  z-index:5;
}
.block_region.scanned_site.main {
  z-index:7;
}
.block_region.top {
  height:13px;
}
.block_region.bottom {
  height:13px;
  top:12px;
}
.block_rule {
  position:absolute;
  z-index:2;
  width:100%;
  height:1px;
  top:12px;
  left:0px;
  background-color:gray;
}
.block_plus_sym {
  position:absolute;
  z-index:4;
  line-height:12px;
  top:0px;
  left:-1em;
}
.block_minus_sym {
  position:absolute;
  z-index:4;
  line-height:12px;
  top:13px;
  left:-1em;
}

.tic_major {
  position:absolute;
  top:0em;
  height:0.5em;
  width: 2px;
  margin-left: -1px;
  background-color: blue;
}
.tic_minor {
  position:absolute;
  top:0em;
  height:0.2em;
  width: 1px;
  margin-left: -0.5px;
  background-color: blue;
}
.tic_label {
  position:absolute;
  display: inline-block;
  top:0.5em;
  height: 1em;
  color: blue;
  transform: translateX(-50%);
}

.block_needle {
  position:absolute;
  z-index:4;
  height:30px; 
  width:1px; 
  top:-2px; 
  background-color:gray;
}
.block_needle.right {
  height: 60px;
}
.block_handle {
  position: absolute; 
  display: inline-block;
  z-index: 5; 
  top: 27px; 
  min-width: 3ex;
  text-align: center;
  font-size: 12px;
  line-height: 12px;
  transform: translateX(-50%);
  background-color: LightGrey; 
  border:3px outset grey;
  cursor: pointer;
  -webkit-user-select: none; /* Chrome/Safari */        
  -moz-user-select: none; /* Firefox */
  -ms-user-select: none; /* IE10+ */
  /* Rules below not implemented in browsers yet */
  -o-user-select: none;
  user-select: none;
}
.block_handle.right {
  top: 47px;
}

.legend_container {
  text-align: right;
}
.legend_entry {
  display: inline-block;
  padding: 5px;
}
div.legend_swatch {
  box-sizing: border-box;
  width: 15px;
  height: 15px;
  border: 1px solid black;
  background-color: cyan;
  float: left;
}
div.legend_swatch input {
  display: none;
}
.legend_text {
  line-height: 15px;
  margin-left: 20px;
}