*       maintains the original model version (4.2.0) instead of downgrading to 4.0.0 for Maven 3 compatibility.
 *       This allows modern features like mixins to be preserved in the consumer POM.</li>
 * </ul>
 * <p>
 * <b>Mixin Handling</b>: Mixins are only supported in model version 4.2.0 or later. If a POM contains mixins:
 * <ul>
 *   <li>Setting {@code preserve.model.version=true} preserves them in the consumer POM with model version 4.2.0</li>

$fluid-val, $val);\n      }\n    }\n  }\n}\n\n// Shorthand helper mixins\n@mixin font-size($value) {\n  @include rfs($value);\n}\n\n@mixin padding($value) {\n  @include rfs($value, padding);\n}\n\n@mixin padding-top($value) {\n  @include rfs($value, padding-top);\n}\n\n@mixin padding-right($value) {\n  @include rfs($value, padding-right);\n}\n\n@mixin padding-bottom($value) {\n  @include rfs($value, padding-bottom);\n}\n\n@mixin padding-left($value) {\n  @include rfs($value, padding-left);\n}\n\n@mixin...

always return their regular pseudo-classes instead of a shimmed media query.\n//\n// Issue: https://github.com/twbs/bootstrap/issues/25195\n\n@mixin hover() {\n  &:hover { @content; }\n}\n\n@mixin hover-focus() {\n  &:hover,\n  &:focus {\n    @content;\n  }\n}\n\n@mixin plain-hover-focus() {\n  &,\n  &:hover,\n  &:focus {\n    @content;\n  }\n}\n\n@mixin hover-focus-active() {\n  &:hover,\n  &:focus,\n  &:active {\n    @content;\n  }\n}\n","// stylelint-disable selector-list-comma-newline-after\n\n//\n//...

}\n}\n\n//\n","//\n// Mixins: Miscellaneous\n//\n\n// ETC\n@mixin translate($x, $y) {\n  transform: translate($x, $y);\n}\n\n// Different radius each side\n@mixin border-radius-sides($top-left, $top-right, $bottom-left, $bottom-right) {\n  border-radius: $top-left $top-right $bottom-left $bottom-right;\n}\n\n@mixin calc($property, $expression) {\n  #{$property}: calc(#{$expression});\n}\n\n@mixin rotate($value) {\n  transform: rotate($value);\n}\n\n@mixin animation($animation) {\n  animation: $animation;\n}\n\n//...

        <field xdoc.separator="blank">
          <name>mixins</name>
          <version>4.2.0+</version>
          <description>Mixins...</description>
          <association>
            <type>Mixin</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>

        <!-- ====================================================================== -->