Block wrapped into a few divs at Elemental theme

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I checking the Elemental theme of Concrete5 and i faced strange things that i could not figure out the reason. I added a few block specifically to the "Page Header" Area, i noticed some of the block wrapped into "div.contain div.row div.col-sm-12". e.g. Content block wrapped into these divs, but foe example Html block not.
Can someone help what should be the reason?

 
MrKDilkington replied on at Permalink Reply
MrKDilkington
Hi Sepehr,

Do you have a website with an example of what you are describing?