ruby on rails - setting the size of input fields -

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i have rails form i'm trying change size of default fields using either :size or both :cols => "30", :rows => "10" in code below. however, form fields staying default size. there i'm doing wrong?

<%= d.text_field c, :class => 'random', :value => "#{c}", :size => "30", :id => 'correction_data_'"#{c.parameterize}"%>

or way

<%= d.text_field @title, :class => 'random', :value => "#{@title}", :cols => "30", :rows => "10", :id => 'correction_data_'"#{@title.parameterize}"%>

text_field doesn't consider rows , cols attributes, consider size attribute. text_area considers rows, cols , size attributes.

text_field:

<%= d.text_field c, :class => 'random', :value => "#{c}", :size => 30, :id => 'correction_data_'"#{c.parameterize}" %>

text_area using rows , cols:

<%= d.text_area @title, :class => 'random', :value => "#{@title}", :cols => 30, :rows => 10, :id => 'correction_data_'"#{@title.parameterize}" %>

text_area using size:

<%= d.text_area @title, :class => 'random', :value => "#{@title}", :size => "30x10", :id => 'correction_data_'"#{@title.parameterize}" %>

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