在将填充设置为0之后，HTML文本元素在浏览器之间具有不一致的填充

I've given the elements a border so that you can see the inconsistent padding. The only thing I have added is a padding-left to each of the 3 elements. I'm trying to space the headlines vertically with even space between across different browsers. Can't figure it out.I've given the elements a border so that you ca