opinionated.css

.node {
  -moz-transition: all 0.5s;
  -o-transition: all 0.5s;
  -ms-transition: all 0.5s;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  border-radius: 3px;
}

.node:hover {
  background-color: rgb(220, 245, 243);
  cursor: pointer;
}

.info, .node {
  padding: 2px 10px 2px 5px;
  font: 14px Helvetica, Arial, sans-serif;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.tree-view_arrow {
  -moz-transition: all 0.1s;
  -o-transition: all 0.1s;
  -ms-transition: all 0.1s;
  -webkit-transition: all 0.1s;
  transition: all 0.1s;
}

.tree-view_arrow-empty {
  color: yellow;
}

.column1 {
  float: right;
  width: 75%;
}

.column2 {
  float: left;
  width: 50%;
}

.column3 {
  float: left;
  width: 33.33%;
}

/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}

.centerText {
  text-align: center;
  width: 66.666%;
}