Switch branches/tags
chore/all/remove-event-handlers-from-adapters chore/button/alternates chore/checkbox/no-more-importants chore/image-list-screenshot chore/infra/high-contrast-rtl-screenshots chore/infra/not-old-ios chore/infrastructure/remove-normalize-css chore/license chore/list/list-item chore/package/update-sass-variables-to-default chore/select/update-adapter-value-methods chore/webpack/building-demos debugging-dumb-ios-tests docs/deploy-site docs/icon-button-meta-36 docs/survey-link-readmes-style docs/40 docs/41 drcampbell-fix/select-height experiment/drawer experimental/advorak/karma-cbt-runner experimental/browser-compat experimental/button-no-line-height experimental/card/ripple-surface experimental/drawer/ios-animation experimental/fab-mixins-kgf experimental_feat_extendedfab_issue2043 experimental_feat_extendedfab_transform experimental_feat_switch_colorscheme experimental/feature-targeting experimental/handlebars experimental/ie10-compat experimental/infra/button-flakiness experimental/lynnjepsen/screenshot-test experimental/m2-card-prototype experimental/menues1 experimental/outline-text-field experimental/ripple-cleanup-kgf experimental/ripple-ie-js-focus experimental/ripple-unbounded experimental/sassdoc experimental/screenshot-testing/cbt experimental/shape-ripple-ms experimental_shapes_system_mvp_single_radius experimental_shapes_system_mvp experimental/sliders/arrow-motions experimental/sliders/continuous experimental/sliders/discrete experimental/sliders/eventhandlers experimental/sliders/mixins experimental/sliders/ripple-states experimental/states-kgf experimental/states-nofocusripple-kgf experimental/states/selected experimental/text-field-outlined-flex experimental/textfield-improvements-prototype experimental_textfield_error_state_proposed experimental/theme/demo experimental/theme/disabled experimental/typescript-definitions feat/card/states-ripple-surface feat/chips/elevation-mixin feat/dialog feat_extendedfab_issue2043_roboto_font feat/invalid-input-label feat/list_toggle_tabindex feat/navigation-drawer-dismissible-foundation-update feat/navigation-drawer-modal feat/navigation-drawer-new feat/navigation-drawer-sass-improve feat/navigation-drawer-water feat/navigation-drawer feat/new-switch feat/rail-drawer feat/side-sheet-scss-cleanup feat/side-sheet feat/slider feat/sliders/arrow-motion feat/sliders/disabled feat/sliders/discrete feat/sliders/tick-mark-coloring feat/snackbar--prototype feat/tabs/tab-bar feat/tabs/tab-compute-dimensions feat/tabs/tab-handlers feat/tabs/tab-indicator-content feat/tabs/tab-indicator-in-tab feat/tabs/tab-scroller feat/tabs/tab feat/tabs/tabs-params-matching feat/test/button-assets-2-gcs feat/theme-emphasis fix/button/stroke-lineheight fix/checkbox/css-background-fade fix/chips/select fix/dialog-spec fix/drawer/fixture-js fix/drawer/page-scroll-issue fix/infrastructure/closure-module-declarations fix/list_checkbox_selectedindex fix/menu-surface-z-index fix/menu-surface/move-event-registration fix/menu/selection-group-styles fix/node-version-travisci fix/notched-outline/fix-overflow fix/outlined-shape-radius fix/slider/center fix/text-field/outline-color fix/textarea-center greenkeeper/autoprefixer-9.2.0 greenkeeper/autoprefixer-9.2.1 greenkeeper/autoprefixer-9.3.0 greenkeeper/autoprefixer-9.3.1 greenkeeper/autoprefixer-9.4.0 greenkeeper/autoprefixer-9.4.1 greenkeeper/autoprefixer-9.4.2 greenkeeper/babel-loader-8.0.0 greenkeeper/babel-loader-8.0.1 greenkeeper/babel-loader-8.0.2 greenkeeper/babel-loader-8.0.3 greenkeeper/babel-loader-8.0.4 greenkeeper/colors-1.3.3 greenkeeper/conventional-commits-parser-3.0.1 greenkeeper/css-loader-2.0.1 greenkeeper/dart-sass-1.15.0 greenkeeper/dart-sass-1.15.1 greenkeeper/dart-sass-1.15.2 greenkeeper/detect-port-1.3.0 greenkeeper/fibers-3.1.0 greenkeeper/fibers-3.1.1 greenkeeper/fs-extra-7.0.1 greenkeeper/google-closure-compiler-20181028.0.0 greenkeeper/google-closure-compiler-20181028.0.1 greenkeeper/google-closure-compiler-20181125.0.1 greenkeeper/google-closure-compiler-20181125.1.0 greenkeeper/google-closure-compiler-20181210.0.0 greenkeeper/husky-1.1.2 greenkeeper/husky-1.1.3 greenkeeper/husky-1.1.4 greenkeeper/husky-1.2.0 greenkeeper/husky-1.2.1 greenkeeper/karma-3.1.0 greenkeeper/karma-3.1.1 greenkeeper/karma-3.1.2 greenkeeper/karma-3.1.3 greenkeeper/karma-sauce-launcher-2.0.0 greenkeeper/karma-sauce-launcher-2.0.1 greenkeeper/karma-sauce-launcher-2.0.2 greenkeeper/karma-webpack-3.0.5 greenkeeper/lerna-2.10.1 greenkeeper/lerna-3.0.0 greenkeeper/lerna-3.0.1 greenkeeper/lerna-3.0.2 greenkeeper/lerna-3.0.3 greenkeeper/lerna-3.0.4 greenkeeper/lerna-3.0.5 greenkeeper/lerna-3.0.6 greenkeeper/lerna-3.1.0 greenkeeper/lerna-3.1.1 greenkeeper/lerna-3.1.2 greenkeeper/lerna-3.2.0 greenkeeper/lerna-3.2.1 greenkeeper/lerna-3.3.0 greenkeeper/lerna-3.3.1 greenkeeper/lerna-3.3.2 greenkeeper/lerna-3.4.0 greenkeeper/lerna-3.4.1 greenkeeper/lerna-3.4.2 greenkeeper/lerna-3.4.3 greenkeeper/lerna-3.5.0 greenkeeper/lerna-3.5.1 greenkeeper/lerna-3.6.0 greenkeeper/npm-run-all-4.1.4 greenkeeper/npm-run-all-4.1.5 greenkeeper/@octokit/rest-16.2.0 greenkeeper/recast-0.16.1 greenkeeper/semver-5.6.0 greenkeeper/simple-git-1.98.0 greenkeeper/simple-git-1.99.0 greenkeeper/simple-git-1.100.0 greenkeeper/simple-git-1.101.0 greenkeeper/simple-git-1.102.0 greenkeeper/simple-git-1.103.0 greenkeeper/simple-git-1.104.0 greenkeeper/simple-git-1.105.0 greenkeeper/simple-git-1.106.0 greenkeeper/simple-git-1.107.0 greenkeeper/standard-changelog-2.0.3 greenkeeper/standard-changelog-2.0.4 greenkeeper/standard-changelog-2.0.5 greenkeeper/standard-changelog-2.0.6 greenkeeper/stylelint-9.6.0 greenkeeper/stylelint-9.7.0 greenkeeper/stylelint-9.7.1 greenkeeper/stylelint-9.8.0 greenkeeper/stylelint-9.9.0 greenkeeper/stylelint-scss-3.3.1 greenkeeper/stylelint-scss-3.3.2 greenkeeper/stylelint-scss-3.4.0 greenkeeper/stylelint-scss-3.4.1 greenkeeper/stylelint-selector-bem-pattern-2.0.0 greenkeeper/testdouble-3.8.2 greenkeeper/testdouble-3.9.0 greenkeeper/testdouble-3.9.1 greenkeeper/webpack-4.0.0 greenkeeper/webpack-4.0.1 greenkeeper/webpack-4.1.0 greenkeeper/webpack-4.1.1 greenkeeper/webpack-4.2.0 greenkeeper/webpack-4.3.0 greenkeeper/webpack-4.4.0 greenkeeper/webpack-4.5.0 greenkeeper/webpack-4.6.0 greenkeeper/webpack-4.7.0 greenkeeper/webpack-4.8.2 greenkeeper/webpack-4.8.3 greenkeeper/webpack-4.9.0 greenkeeper/webpack-4.9.1 greenkeeper/webpack-4.9.2 greenkeeper/webpack-4.10.0 greenkeeper/webpack-4.10.1 greenkeeper/webpack-4.10.2 greenkeeper/webpack-4.11.0 greenkeeper/webpack-4.11.1 greenkeeper/webpack-4.12.0 greenkeeper/webpack-4.12.1 greenkeeper/webpack-4.12.2 greenkeeper/webpack-4.13.0 greenkeeper/webpack-4.14.0 greenkeeper/webpack-4.15.0 greenkeeper/webpack-4.15.1 greenkeeper/webpack-4.16.0 greenkeeper/webpack-4.16.1 greenkeeper/webpack-4.16.2 greenkeeper/webpack-4.16.3 greenkeeper/webpack-4.16.4 greenkeeper/webpack-4.16.5 greenkeeper/webpack-4.17.0 greenkeeper/webpack-4.17.1 greenkeeper/webpack-4.17.2 greenkeeper/webpack-4.17.3 greenkeeper/webpack-4.18.0 greenkeeper/webpack-4.18.1 greenkeeper/webpack-4.19.0 greenkeeper/webpack-4.19.1 greenkeeper/webpack-4.20.0 greenkeeper/webpack-4.20.1 greenkeeper/webpack-4.20.2 greenkeeper/webpack-4.21.0 greenkeeper/webpack-4.22.0 greenkeeper/webpack-4.23.0 greenkeeper/webpack-4.23.1 greenkeeper/webpack-4.24.0 greenkeeper/webpack-4.25.0 greenkeeper/webpack-4.25.1 greenkeeper/webpack-4.26.0 greenkeeper/webpack-4.26.1 greenkeeper/webpack-4.27.0 greenkeeper/webpack-4.27.1 greenkeeper/webpack-dev-server-3.0.0 greenkeeper/webpack-dev-server-3.1.0 greenkeeper/webpack-dev-server-3.1.1 greenkeeper/webpack-dev-server-3.1.2 greenkeeper/webpack-dev-server-3.1.3 greenkeeper/webpack-dev-server-3.1.4 greenkeeper/webpack-dev-server-3.1.5 greenkeeper/webpack-dev-server-3.1.6 greenkeeper/webpack-dev-server-3.1.7 greenkeeper/webpack-dev-server-3.1.8 greenkeeper/webpack-dev-server-3.1.9 greenkeeper/webpack-dev-server-3.1.10 latest-release list_custom_event_issue3481 list_custom_event_menu_update_issue3481 list_twolines_baseline_issue3038 maintenance/text-field master mock/crane origin/experimental/sliders patrickrodee-patch-1 patrickrodee-patch-2 refactor/text-field/opacity refactor/theme/color ripple/events ripple/prototype slider/mixins tabzzzzzzzzz test/switch-update textfields/verticalAlignment theme_alpha_variables_issue3066 typography_text_baseline
Nothing to show
Find file History

README.md

Elevation

Shadows provide important visual cues about objects’ depth and directional movement. They are the only visual cue indicating the amount of separation between surfaces. An object’s elevation determines the appearance of its shadow. The elevation values are mapped out in a "z-space" and range from 0 to 24.

A note about "z-space": Within the spec, elevation is normally referred to as having a dp value. In other words, how many "pixels" above the base material is a piece of material elevated. On a computer, this is normally represented by a 3-d coordinate system. We like z-space (or just "z" for short) because it aligns with the technical definition of, and nomenclature for, a 3-d coordinate system. Therefore, we feel it makes more sense than dp. However, when we refer to z-space (or z), that can be used interchangeably with the spec's dp.

Design & API Documentation

Installation

npm install @material/elevation

Usage

CSS Classes

Some components have a set elevation. For example, a raised MDC Button has elevation 2.

If you want to set the elevation of an element, which is not a Material Design component, you can apply the following CSS classes.

CSS Class Description
mdc-elevation--z<N> Sets the elevation to the (N)dp, where 1 <= N <= 24
mdc-elevation-transition Applies the correct css rules to transition an element between elevations

Sass Mixins, Variables, and Functions

Mixin Description
mdc-elevation($z-value, $color, $opacity-boost) Sets the elevation to the z-space for that given elevation, and optionally sets the color and/or boosts the opacity of the shadow
Function Description
mdc-elevation-transition-value($duration, $easing) Returns a value for the transition property to transition an element between elevations
Variable Description
$mdc-elevation-property Default property for elevation transitions
$mdc-elevation-transition-duration Default duration value for elevation transitions
$mdc-elevation-transition-timing-function Default easing value for elevation transitions

If you need more configurability over your transitions, use the mdc-elevation-transition-value function in conjunction with the exported sass variables.

.my-component-with-custom-transitions {

  transition:
    mdc-elevation-transition-value(),
    /* Configure opacity to use same duration and easing values as elevation */
    opacity $mdc-elevation-transition-duration $mdc-elevation-transition-timing-function;
  opacity: .7;
  will-change: $mdc-elevation-property, opacity;
}