Bootstrap columns in triangle shape

I could sound dumb asking this question,but please cooperate with me. I will try and explain it as cleanly as possible.

I have a Bootstrap row,which has two columns in it. Like so

<div class="container-fluid">
    <div class="row">
        <div class="col firstCol"> Hello, </div>
        <div class="col secondCol"> World & </div>
    </div>
</div>

What I am trying to figure out is the firstCol & secondCol should be in right-angle triangle shaped like in the image.

I am aware that we can rotate the column but the content inside that column also gets rotated,but I am not looking for that. I am totally blank here,I am seeking help to start implementing this.