get off with runtime table of login contorlpa

Guys There is a .aspx page in sharepoint in which i have a login contorl used for fba

When i compile and run this page in browser it dynamically converted into table

and then it is affecting the applied css. 

So , what can be the way either to remove it completely using css , javascript whatever

so that no styling is made of table and trs

I have tried to make it as a template too and used renderoutputtable=false

nothing helping.