To prevent a line break after text, the field FOLLOWING the text has to have "display:inline !important;".
Also, for some reason which may be corrected after the (current to this post) jquery mobile v1.20, the heights of select and text-inputs are not quite right and need a cryptic mix of padding and margins resetting to work.
The "!important" specs were required in the following fiddle. Here is a list with 2 lines - one aligned to normal buttons and one to the mini buttons. Good Luck!
See http://jsfiddle.net/RM5eq/
<style>
.floatleft {
float:left;
}
.floatright {
float:right;
}
.forceinline{ /* Prevent fieldcontain from doing a BLOCK thing */
display:inline !important;
}
.textwidth { /* limit width of input fields */
width:80px;
}
.closespacing { /* controls spacing between elements */
margin:0px 5px 0px 0px;
}
.bigselect { /* centers select with big buttons */
padding: 0px;
margin:2px 5px 0px 0px;
}
.biginputheight { /* matches text input height to big buttons */
padding-top:10px !important;
padding-bottom:12px !important;
}
.miniinputheight { /* matches text input height to minibuttons */
padding-top:5px !important;
padding-bottom:5px !important;
}
</style>
<div data-role="page" class="type-home">
<ul data-role="listview">
<li data-role="fieldcontain">first LI line</li>
<li data-role="fieldcontain">
<div class='floatleft closespacing'>
Big Buttons<br>More Text
</div>
<div data-role="fieldcontain" class= 'forceinline'>
<div class='floatleft closespacing'>
<fieldset data-role="controlgroup" data-type="horizontal">
<input type="radio" name="radio-view" id="radio-view-a" value="aa" />
<label for="radio-view-a">A1</label>
<input type="radio" name="radio-view" id="radio-view-b" value="bb" />
<label for="radio-view-b">B1</label>
</fieldset>
</div>
</div>
<div class='floatleft bigselect'>
<select name="select-choice-0" id="select-choice-1" data-inline="true" class=' '>
<option >SM1</option>
<option value="standard">Standard: 7 day</option>
</select>
</div>
<div class='floatleft textwidth'>
<input type="text" placeholder="left" class='biginputheight'></input>
</div>
<div class='floatright textwidth'>
<input type="text" placeholder="right" class='biginputheight'></input>
</div>
</li>
<li data-role="fieldcontain">
<div class='floatleft closespacing'>
Small Buttons
</div>
<div data-role="fieldcontain" class= 'forceinline'>
<div class='floatleft closespacing'>
<fieldset data-role="controlgroup" data-type="horizontal" data-mini='true'>
<input type="radio" name="radio-view" id="radio-view-a" value="aa" />
<label for="radio-view-a">AA</label>
<input type="radio" name="radio-view" id="radio-view-b" value="bb" />
<label for="radio-view-b">BB</label>
</fieldset>
</div>
</div>
<div class='floatleft textwidth'>
<input type="text" placeholder="e2" class='miniinputheight'></input>
</div>
<div class='floatleft closespacing'>
<select name="select-choice-2" id="select-choice-2" data-inline="true" data-mini='true'>
<option >SM2</option>
<option value="standard">Standard: 7 day</option>
</select>
</div>
<div class='floatright closespacing'>
<div class='floatright closespacing'>
e3 Text<br>on right
</div>
<div class='floatright textwidth'>
<input type="text" placeholder="e3" class='miniinputheight'></input>
</div>
</div>
</li>
<li data-role="fieldcontain">last LI line</li>
</ul><!-- /listview -->