ultrawidify/src/res/css/flex.css

.flex {
  display: flex;
}

.flex-row {
  flex-direction: row;
}

.flex-column {
  flex-direction: column;
}

.flex-auto {
  flex: 1 1 auto;
}

.flex-grow {
  flex-grow: 1;
}

.flex-wrap {
  flex-wrap: wrap;
}