to the selector if needed.\n@mixin _rfs-media-query-rule {\n\n  @if $rfs-class == enable {\n    @if $rfs-mode == min-media-query {\n      @content;\n    }\n\n    @include _rfs-media-query () {\n      .enable-rfs &,\n      &.enable-rfs {\n        @content;\n      }\n    }\n  }\n  @else {\n    @if $rfs-class == disable and $rfs-mode == min-media-query {\n      .disable-rfs &,\n      &.disable-rfs {\n        @content;\n      }\n    }\n    @include _rfs-media-query () {\n      @content;\n    }\n  }\n}\n\n//...

padding-right: 15px;\n  padding-left: 15px;\n  margin-right: auto;\n  margin-left: auto;\n}\n\n@media (min-width: 576px) {\n  .container, .container-sm {\n    max-width: 540px;\n  }\n}\n\n@media (min-width: 768px) {\n  .container, .container-sm, .container-md {\n    max-width: 720px;\n  }\n}\n\n@media (min-width: 992px) {\n  .container, .container-sm, .container-md, .container-lg {\n    max-width: 960px;\n  }\n}\n\n@media (min-width: 1200px) {\n  .container, .container-sm, .container-md, .container-lg, .container-xl...

     */
    String getSupportedUploadedCssExtentions();

    /**
     * Get the value for the key 'supported.uploaded.media.extentions'. <br>
     * The value is, e.g. jpg,jpeg,gif,png,swf <br>
     * comment: Supported media file extensions for upload.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */