flex-basis: 200 px
flex-shrink: 1

actual size: 200

flex-basis: 200 px
flex-shrink: 1

actual size: 200

Space Missing:

Space Missing ÷ ( shrink Item 1 + shrink Item 2) =

Reducing Width on Item 1 by:

Reducing Width on Item 2 by:

Final Width Item 1:

Final Width Item 2: