anchor.diff:  
       .grid__row
         .grid__cell-sm.grid__cell-sm_size_4.grid__block-cell.raw-text
  -        .heading.heading_level_2 Blocks
  +        .heading.heading_level_3 Blocks
   
           p Each block will have it's own directory and file with styles:
   
  
positive.code:     .grid__row
        .grid__cell-sm.grid__cell-sm_size_4.raw-text
          :markdown
            #### 1. Install modules
  
            ```bash
            npm install gulp -g
  
negative.code:           .types__d_b footer/
            .types__f_b   footer.css
        .grid__cell-sm.grid__cell-sm_size_4.grid__element-cell.raw-text
          .heading.heading_level_3 Elements
  
          p Since elements can't be outside of blocks — we will place them in subfolder of block:
  
  