secure is fly

• secure #12
• is #11
• fly #13

<style data-via="https://github.com/s9a/bae/releases/tag/v0.3.0">
.bae-clean:not(.bae-unclean),.bae-clean :not(.bae-unclean){background:transparent;color:inherit}
.bae-flat:not(.bae-unflat),.bae-flat :not(.bae-unflat){border-color:transparent}
.bae-warm{color:#415 !important;background:#bae !important}
.bae-cool{color:#bae !important;background:#415 !important}
</style>