Hi, I do not know, if this is what you are searching for, but take a look at bluegriffon
https://www.bluegriffon.org Also (if it must not the super modern tool), you can try "kompozer" or its successor "NVU" (but I believe, NVU is only for MAC and Windows). You searched for "small", but small is relative. There is also "Amaya", but maybe it is too big. Also you may like "Geany", which shall also be very small. Hope it helps, though.... Best regards Hans
