Vertically align text and button inside Bootstrap 3 alert

Question

I'm trying to vertically align text (pulled left) and a button (pulled right) inside a Bootstrap 3 alert. Somehow like this:

+------------------------------------------------+
| Some text                           [A button] |
+------------------------------------------------+

What I have so far is the following (Bootply):

<div class="alert alert-info" style="overflow:hidden">
    <p class="pull-left">Some text</p>
    <button class="btn btn-sm btn-default pull-right">A button</button>
</div>

The button is perfectly aligned (this was actually my first problem, solved here), but now the text is out of center.

I appreciate your help!

Answer 1

Assuming you don't want to use line-height, you can also try:

div.alert-info {
    position: relative;
}

div.alert-info p.pull-left {
   -webkit-transform: translateY(-50%);
   -ms-transform: translateY(-50%);
   -o-transform: translateY(-50%);
    transform: translateY(-50%);
    position: absolute;
    top: 50%;
}

http://www.bootply.com/117260

Answer 2

use display:table; width:100%; for the alert div, and for the p tag remove the float and use display:table-cell; vertical-align:middle.
You can use the same rules for the button.