business_logic/static/business_logic/blockly/accessible.css
.blocklyTable {
vertical-align: top;
}
.blocklyTree .blocklyActiveDescendant > label,
.blocklyTree .blocklyActiveDescendant > div > label,
.blocklyActiveDescendant > button,
.blocklyActiveDescendant > input {
outline: 2px dotted #00f;
}