How to stretch the parent block height child?

There is a line in the table by clicking on "..." there is an additional unit with a detailed description(position:absolute), but the unit fit in the basement.
How to make it not salasil, but all the lines were under the unit with a detailed description?
March 12th 20 at 08:43
3 answers
March 12th 20 at 08:45
position: relative does not?
absolute positioning makes the unit of the parent...
March 12th 20 at 08:47
1) Read what is happening with the data flow when setting position: absolute.
2) Remove from emerging block position:absolute and come up with another variant appearing. For example, under the line there is another line colspans in all columns and there is already a detailed description.
March 12th 20 at 08:49
when clicking to change the height of the parent element using js

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