Numbers look different in Safari on iPhone

I have a simple snippet with a phone number composed by a one letter and 12 numbers, its a simple text inside a p element, In a desktop browser all looks fine, but in an iPhone browser the letter p looks fine but the rest of the number looks very small and there is a linebreak.

enter image description here

 p.style3 {
  font-size: 3rem !important;
  font-family: Georgia, "Times New Roman", Times, serif !important;
  text-rendering: optimizeLegibility;
  font-style: italic;
  font-weight: lighter;
  white-space: nowrap;
 }

<p class="style3">p. 706.467.3000</p>

Why does Safari on iOS show this behavior?

Solution

Try this (http://codepen.io/sergdenisov/pen/ZGBEvR):

HTML:

<meta name="format-detection" content="telephone=no"/>
<p class="style3">p. 706.467.3000</p>

CSS:

p.style3 {
    -webkit-text-size-adjust: 100%;
    font-size: 3rem !important;
    font-family: Georgia, "Times New Roman", Times, serif !important;
    text-rendering: optimizeLegibility;
    font-style: italic;
    font-weight: lighter;
    white-space: nowrap;
}

P.S. <meta> should lie in <head>.