.col-two-thirds-width {
  min-width: calc(66.66% - 5px);
  max-width: calc(66.66% - 5px);
  margin-top: 10px;
}

.col-one-third-width {
  min-width: calc(33.33% - 5px);
  max-width: calc(33.33% - 5px);
  margin-top: 10px;
}

.img-col-one-third-width {
  width: 100%;
}