0_screenshot.markdown

A pure CSS bendy shadow:

I suspect that some trig calculations could make this very general.

1_mixin.scss

@mixin bendy-shadow($width, $angle: 5deg, $color: rgba(#333, 0.5)) {
  position: relative;
  z-index: 1;
  @include box-shadow(0 10px 5px -5px $color);
  &:before, &:after {
    content: "";
    position: absolute;
    bottom: 2px;
    width: $width / 2;
    height: 10px;
    z-index: -1;
    @include box-shadow(0 10px 10px 1px $color);
  }
  &:before {
    left: 10px;
    @include rotate(-$angle);
  }
  &:after {
    right: 10px;
    @include rotate($angle);
  }
}

2_usage_with_image_fallback.scss

  #photo-widget {
    .no-boxshadow &, .no-csstransforms & {
      .viewport {
        padding-bottom: image-height('local/provider/photo-shadow-left.png') + 1px;
        background: transparent image-url('local/provider/photo-shadow-left.png') no-repeat bottom left;
      }
      .shadow {
        background: transparent image-url('local/provider/photo-shadow-right.png') no-repeat bottom right;
        height: image-height('local/provider/photo-shadow-right.png');
        width: image-width('local/provider/photo-shadow-right.png');
        position: absolute;
        bottom: 0;
        right: 0;
      }
    }
    .boxshadow.csstransforms & {
      .viewport {
        @include bendy-shadow(250px);
      }
      .shadow {
        display: none;
      }
    }
  }

This is sexy. Thanks for sharing boss!