HST/COS FUV spectra (left) and VLT/MUSE optical spectra (right) observed toward YSC M83-POS-1 in gray. The spaxels from VLT/MUSE IFU observations have been extracted within the COS aperture to make both spectra cospatial. The blue, magenta, red, and green dashed vertical lines show the location of the prominent lines from wind+ISM, stellar photospheric, ISM absorption, and nebular emission features, respectively.