Reduced the width of the slider at narrow (smartphone) sizes to avoid…

… wrapping

On inset lists with embedded forms, the slider was wrapping under the
input.

themes/default/jquery.mobile.forms.slider.css

@@ -7,7 +7,7 @@ label.ui-slider { font-size: 16px; line-height: 1.4;  font-weight: normal; margi
 input.ui-slider-input,
 .ui-field-contain input.ui-slider-input { display: inline-block; width: 50px; }
 select.ui-slider-switch { display: none; }
-div.ui-slider { position: relative; display: inline-block; overflow: visible; height: 15px; padding: 0; margin: 0 2% 0 20px; top: 4px; width: 70%; }
+div.ui-slider { position: relative; display: inline-block; overflow: visible; height: 15px; padding: 0; margin: 0 2% 0 20px; top: 4px; width: 66%; }
 div.ui-slider-switch { width: 99.8%; }
 a.ui-slider-handle { position: absolute; z-index: 10;  top: 50%; width: 28px; height: 28px; margin-top: -15px; margin-left: -15px; }
 a.ui-slider-handle .ui-btn-inner { padding-left: 0; padding-right: 0; }