For those of us still working with older browsers, here's some extended backwards compatibility:
<div style="text-align: center;">
<div style="display:-moz-inline-stack; display:inline-block; zoom:1; *display:inline; text-align: left;">
Line 1: Testing<br>
Line 2: More testing<br>
Line 3: Even more testing<br>
</div>
</div>
_x000D_
Partially inspired by this post: https://stackoverflow.com/a/12567422/14999964.