[html] Bootstrap how to get text to vertical align in a div container

What is the best/proper way to vertically align the text in the middle of its column? The image height is statically set in the CSS.

I have tried setting an outer div to display: table and an inner div to display: table-cell with vertical-align: middle but that didn't work either.

HTML

<section id="browse" class="browse">
    <div class="container">
        <div class="row">
            <div class="col-md-5 col-sm-5">
                <h2 class="text-left">Link up with other gamers all over the world who share the same tastes in games.</h2>
            </div>
            <div class="col-md-1"></div>
            <div class="col-md-6 col-sm-7 animation_container">
                <img id="animation_img2" class="animation_img animation_img2" src="images/section2img2.png"/>
                <img id="animation_img1" class="animation_img animation_img1" src="images/section2img1.png"/>
            </div>
        </div>
    </div>
</section>

CSS

.browse .container, .blind_dating .container { padding-bottom: 0; }
.animation_container { position: relative; }
.browse .animation_container { height: 430px; }
.animation_img { position: absolute; bottom: 0; }
.animation_img1 { right: 25%; }
.animation_img2 { right: 25%; }

Could you not have simply added:

align-items:center;

to a new class in your row div. Essentially:

<div class="row align_center">

.align_center { align-items:center; }

h2.text-left{
  position:relative;
  top:50%;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
}

Explanation:

The top:50% style essentially pushes the header element down 50% from the top of the parent element. The translateY stylings also act in a similar manner by moving then element down 50% from the top.

Please note that this works well for headers with 1 (maybe 2) lines of text as this simply moves the top of the header element down 50% and then the rest of the content fills in below that, which means that with multiple lines of text it would appear to be slightly below vertically aligned.

A possible fix for multiple lines would be to use a percentage slightly less than 50%.