$column-basis: 250px;
.tcb-flex-row {
  display: flex;
  flex-wrap: nowrap;
  align-items: stretch;
  flex-direction: row;
  justify-content: space-between;
  margin-top: 0;
  padding-bottom: 15px;
  padding-top: 15px;

  &.tve-flex-start {
    align-items: flex-start;
  }

  &.tve-flex-center {
    align-items: center;
  }

  &.tve-flex-end {
    align-items: flex-end;
  }
}

.tcb-flex-col {
  flex: 1 1 auto;
  padding-top: 0;

  .tcb-flex-row & {
    box-sizing: border-box;
  }
}

/* new columns - support backgrounds */
.tcb-col {
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;

  .tcb-flex-row & {
    box-sizing: border-box;
  }
}

/* IE11 hack - columns look all messed up in IE11 in some cases */
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
  .tcb-flex-col {
    width: 100%;
  }
  .tcb-col {
    display: block;
  }
}

/* more specificity */
:not(#s):not(#s) .tcb-flex-row {
  flex-direction: column;
  flex-wrap: wrap;
  width: 100%;

  .tcb-flex-col {
    width: 100%;
    max-width: 100%;

    justify-content: center;
    flex-basis: auto;

    /* center everything inside the columns */
    .tcb-col > * {
      margin-right: auto;
      margin-left: auto;

      &:not(.tcb-post-author-picture) {
        min-width: 300px;
      }
    }
  }
}

:not(#s) .thrv-columns .tcb-col.thrive-dynamic-source {
  background-size: contain;
}