[twitter-bootstrap] col align right

I'm trying to create a row with 2 cols. One col on the left with its contents aligned left, and the second col with its contents aligned right (old pull-right).

How to do I go about this in alpha-6?

I've tried a few things, but this is what I have so far. What am I missing?

<div class="row">
    <div class="col">left</div>
    <div class="col ml-auto">content needs to be right aligned</div>
</div>

From the documentation, you do it like:

<div class="row">
    <div class="col-md-6">left</div>
    <div class="col-md-push-6">content needs to be right aligned</div>
</div>

Docs

For Bootstrap 4 I find the following very handy because:

• the column on the right takes exactly the space it needs and will pull right
• while the left col always gets the maximum amount of space!.

It is the combination of col and col-auto which does the magic. So you don't have to define a col width (like col-2,...)

<div class="row">
    <div class="col">Left</div>
    <div class="col-auto">Right</div>
</div>

Ideal for aligning words, icons, buttons,... to the right.

An example to have this responsive on small devices:

<div class="row">
    <div class="col">Left</div>
    <div class="col-12 col-sm-auto">Right (Left on small)</div>
</div>

Check this Fiddle https://jsfiddle.net/Julesezaar/tx08zveL/

For The Bootstrap 4+

This Code Worked Well for me

<div class="row">
        <div class="col">
            <div class="ml-auto">
                this content will be in the Right
            </div>
        </div>
        <div class="col mr-auto">
            <div class="mr-auto">
                this content will be in the leftt
            </div>
        </div>
    </div>

How about this? Bootstrap 4

<div class="row justify-content-end">
    <div class="col-3">
        The content is positioned as if there was
        "col-9" classed div appending this one.
    </div>
</div>