@mixin fixed-body-height-with-var(
  $header-selector: "",
  $header-height: auto,
  $footer-selector: "",
  $footer-height: auto,
  $body-selector: "",
  $reset: false
) {
  @if $reset != true {
    @if $body-selector == "" {
      &,
      #{$header-selector},
      #{$footer-selector} {
        @include box-sizing(border-box);
      }

      #{$header-selector},
      #{$footer-selector} {
        overflow: auto;
      }
    }

    @else {
      &,
      #{$header-selector},
      #{$body-selector},
      #{$footer-selector} {
        @include box-sizing(border-box);
      }

      #{$header-selector},
      #{$body-selector},
      #{$footer-selector} {
        overflow: auto;
      }

      #{$body-selector} {
        height: 100%;
      }
    }
  }

  @if $header-height != auto {
    padding-top: $header-height;

    #{$header-selector} {
      height: $header-height;
      margin-top: calc(#{$header-height} * -1);
    }
  }

  @if $footer-height != auto {
    padding-bottom: $footer-height;

    #{$footer-selector} {
      height: $footer-height;
      margin-bottom: calc(#{$footer-height} * -1);
    }
  }

  @content;
}