i'am new with bootstrap , i wanted to have a specific organisation of my view , you can see it in the image , but the problem is i can't manage to have padding between my cols .
<div class="container">
<div class="row">
<div class="col-sm-3" style='border-radius: 5px;border: 2px solid green;'>
<div class="row">
<div class="col-sm-12" style='border-radius: 5px;background-color:red;height:70px;'></div>
<div class="col-sm-12" style='border-radius: 5px;background-color:red;height:140px;'></div>
<div class="col-sm-12" style='border-radius: 5px;background-color:red;height:140px;'></div>
<div class="col-sm-12" style='border-radius: 5px;background-color:red;height:140px;'></div>
</div></div>
<div class="col-sm-9" style='border-radius: 5px;border: 2px solid red;'>
<div class="row">
<div class="col-sm-4 " style='border-radius: 5px;background-color:red;height:220px;'></div>
<div class="col-sm-4" style='border-radius: 5px;background-color:red;height:220px;'></div>
<div class="col-sm-4" style='border-radius: 5px;background-color:red;height:220px;'></div>
</div> </div>
</div>
</div>
and here is what i want to have and what i got with this code.
please help me with that :) thanks