.callout
    padding: $callout['padding']
    border-radius: $border-radius
    border-top: 1px solid $callout['border-color']
    border-bottom: 1px solid $callout['border-color']
    border-right: 1px solid $callout['border-color']

    for key, value in $brands
        &.callout-{key}
            border-left: 5px solid value