Using flex$-$basis, set element with class first to $20\%,$ class second to be $50\%,$ and class third to be $30\%5\mathrm{.}1\mathrm{.}1$: Flexbox.

$577750\mathrm{.}4270458.$qx$3$zqy$7$

Jump to level $1$

Using flex$-$basis, set element with class first to $20\%,$ class second to be $50\%,$ and class third to be $30\%.$ SHOW EXPECTED

$5\mathrm{.}1\mathrm{.}1$: Flexbox.

$577750\mathrm{.}4270458.$qx$3$zqy$7$

Jump to level $1$

Using flex$-$basis, set element with class first to $20\%,$ class second to be $50\%,$ and class third to be $30\%.$ SHOW EXPECTED