W72crm_web-master/node_modules/less/test/less-bom/calc.less

.no-math {
  @var: 50vh/2;
  width: calc(50% + (@var - 20px));
  foo: 1 + 2 calc(3 + 4) 5 + 6;
  @floor: floor(1 + .1);
  bar: calc(@floor + 20%);
}