Set height same height of all columns in a row after dom loaded

[pushpendraionic]

Hi,
I have following structure:

{{item.name}}

Now I have to set the height of all span with id “test” in a row(heigth to be set is the maximum height of spans in a row after rendering ie. math.max(span1,span2, span3)).
I am unable to do it.
Please help me.