compass/frameworks/blueprint/stylesheets/blueprint/reset/_utilities.scss

// Global reset rules.
// For more specific resets, use the reset mixins provided below
@mixin blueprint-global-reset {
  html { @include blueprint-reset-box-model; }
  body { @extend .bp-reset-element; }
  @include blueprint-nested-reset; }

// Reset all elements within some selector scope.To reset the selector itself,
// mixin the appropriate reset mixin for that element type as well. This could be
// useful if you want to style a part of your page in a dramatically different way.
@mixin blueprint-nested-reset {
  .bp-reset-element,
  div, span, object, iframe, p,
  pre, a, abbr, acronym, address,
  code, del, dfn, em, img,
  dl, dt, dd, ol, ul, li, fieldset,
  form, label, legend,
  caption, tbody, tfoot, thead, tr { @include blueprint-basic-reset;                           }
  #{headers(all)}                  { @include blueprint-basic-reset(bp-reset-element);         }
  #{elements-of-type(html5)}       { @include blueprint-reset-html5-element(bp-reset-element); }
  blockquote, q                    { @include blueprint-reset-quotation(bp-reset-element);     }
  th, td, caption                  { @include blueprint-reset-table-cell(bp-reset-element);    }
  table                            { @include blueprint-reset-table(bp-reset-element);         }
  a img                            { border: none;                                             }
}

@mixin blueprint-reset-html5-element($reset-base-class: false) {
  @if $reset-base-class { @extend .#{$reset-base-class}; }
  @else                 { @include blueprint-reset; }
  display: block;
}

@mixin blueprint-reset-box-model {
  margin: 0;
  padding: 0;
  border: 0;
}

@mixin blueprint-reset {
  @warn "The blueprint-reset mixin is deprecated. Please use blueprint-basic-reset instead.";
  @include blueprint-basic-reset;
}

@mixin blueprint-basic-reset($reset-base-class: false) {
  @if $reset-base-class {
    @extend .#{$reset-base-class};
  } @else {
    @include blueprint-reset-box-model;
    @include blueprint-reset-typography;
  }
}

@mixin blueprint-reset-typography {
  font: {
    weight: inherit;
    style: inherit;
    size: 100%;
    family: inherit; };
  vertical-align: baseline;
}

@mixin blueprint-reset-quotation($reset-base-class: false) {
  @if $reset-base-class { @extend .#{$reset-base-class}; }
  @else { @include blueprint-reset; }
  quotes: "" "";
  &:before,
  &:after {
    content: ""; } }

@mixin blueprint-reset-table-cell($reset-base-class: false) {
  @if $reset-base-class { @extend .#{$reset-base-class}; }
  @else { @include blueprint-reset; }
  float: none !important;
  text-align: left;
  font-weight: normal;
  vertical-align: middle; }

@mixin blueprint-reset-table($reset-base-class: false) {
  @if $reset-base-class { @extend .#{$reset-base-class}; }
  @else { @include blueprint-reset; }
  border-collapse: separate;
  border-spacing: 0;
  vertical-align: middle; }