Im current, customize template 1rst Class, with content of restaurant, and customer say
"Show 21 articles with images and descrption of foods"

How can make show as "featured "21 articles with "Read more" each one in Home of site ?

Its current

its desired..

Thanks for you reply.

How can make show as "featured "21 articles with "Read more" each one in Home of site ?

Hello,
it is allowed max 4 modules in each row. 21 modules are not possible.
But you can create a html custom module with 21 articles like that:

This is an example of 3 modules in each row, but you need to add the code 7 times:

<div class="uk-grid">
<div class="uk-width-medium-1-3">
<div class="uk-panel">...</div>
</div>
<div class="uk-width-medium-1-3">
<div class="uk-panel">...</div>
</div>
<div class="uk-width-medium-1-3">
<div class="uk-panel">...</div>
</div>
</div>

The grid is based on uikit:
getuikit.com/docs/panel.html

Thanks
Im unknow , how make you response...
But, i can make one list of articles , under one category...
but,

how can show this category in home of webpage ?

Thanks for you fast response.