cqi · cqb
The container measured by the axes of writing — the logical pair of cqw and cqh.
One cqi is 1% of the query container along the inline axis, and one cqb, 1% along the block axis. They stand to cqw and cqh as vi and vb stand to vw and vh: the same measures, spoken in the grammar of writing-mode.
They are, in fact, the house standard: container-type: inline-size — the most common declaration — watches exactly the axis cqi measures, which is why modern container query examples prefer cqi over cqw.
.cartao {
container-type: inline-size;
}
.cartao p {
max-inline-size: 90cqi;
}