Test ignored horizontal margins for empty inline boxes
Test ignored horizontal margins for empty inline boxes

jasco/WeasyPrint,marclaporte/WeasyPrint,marclaporte/WeasyPrint,prepare/TestWeasyPrint,Kozea/WeasyPrint,prepare/TestWeasyPrint,Kozea/WeasyPrint,andrewleech/WeasyPrint,jasco/WeasyPrint,andrewleech/WeasyPrint