Fixes to make reactions look nicer in diff html
Fixes to make reactions look nicer in diff html

nickvandewiele/RMG-Py,pierrelb/RMG-Py,nyee/RMG-Py,nyee/RMG-Py,chatelak/RMG-Py,pierrelb/RMG-Py,nickvandewiele/RMG-Py,chatelak/RMG-Py