Width of text input in JQM 1.3.0 and android

Width of text input in JQM 1.3.0 and android

With JQM 1.3.0 the text inputs are displayed different than in 1.2.0. This happens only on on Android (SGS2, Android 4.0.4), but not on my IPad oder Desktop Browser. In JQM 1.3.0 the input box is larger than the actual box you type in (for a better understanding see my screenshots).
This is the HTML Code for the input:

  1. <tr><td>
  2.           <label for="mph_father"><span lang="en">Height father (cm)</span></label>
  3. </td><td>
  4.           <input type="number" onKeyUp="mph_calc()" maxlength="3" style="width:100px"  name="mph_father" id="mph_father" value=""  />
  5. </td></tr>

Is this a bug, a feature or bad coding by me?

The first picture is taken with JQM 1.2.0, the latter with JQM 1.3.0