Vertically align text within a div

Create a container for your text content, a span perhaps.

#column-content {
  display: inline-block;
}
img {
  vertical-align: middle;
}
span {
  display: inline-block;
  vertical-align: middle;
}

/* for visual purposes */
#column-content {
  border: 1px solid red;
  position: relative;
}

<div id="column-content">

  <img src="http://i.imgur.com/WxW4B.png">
  <span><strong>1234</strong>
    yet another text content that should be centered vertically</span>
</div>

Expand snippet

JSFiddle