Hi all 

in the tree view for one2many field I noticed that the integer/float columns are thinner than the columns of the fields of char type, so all I want to make my float field column as wide as the char one,

the string of  the column  type float/integer is gonna become  abbreviated. if it is slightly long,

 I just want to expand it,

I tried stuff such as   inline css width/ colspan/  col-md and none of them really did the job.

 Thanks in advance