first commit

wp-includes/blocks/embed/block.json

@@ -0,0 +1,42 @@
+{
+	"$schema": "https://schemas.wp.org/trunk/block.json",
+	"apiVersion": 2,
+	"name": "core/embed",
+	"title": "Embed",
+	"category": "embed",
+	"description": "Add a block that displays content pulled from other sites, like Twitter or YouTube.",
+	"textdomain": "default",
+	"attributes": {
+		"url": {
+			"type": "string"
+		},
+		"caption": {
+			"type": "string",
+			"source": "html",
+			"selector": "figcaption"
+		},
+		"type": {
+			"type": "string"
+		},
+		"providerNameSlug": {
+			"type": "string"
+		},
+		"allowResponsive": {
+			"type": "boolean",
+			"default": true
+		},
+		"responsive": {
+			"type": "boolean",
+			"default": false
+		},
+		"previewable": {
+			"type": "boolean",
+			"default": true
+		}
+	},
+	"supports": {
+		"align": true
+	},
+	"editorStyle": "wp-block-embed-editor",
+	"style": "wp-block-embed"
+}

wp-includes/blocks/embed/editor-rtl.css

@@ -0,0 +1,110 @@
+/**
+ * Colors
+ */
+/**
+ * Breakpoints & Media Queries
+ */
+/**
+ * SCSS Variables.
+ *
+ * Please use variables from this sheet to ensure consistency across the UI.
+ * Don't add to this sheet unless you're pretty sure the value will be reused in many places.
+ * For example, don't add rules to this sheet that affect block visuals. It's purely for UI.
+ */
+/**
+ * Colors
+ */
+/**
+ * Fonts & basic variables.
+ */
+/**
+ * Grid System.
+ * https://make.wordpress.org/design/2019/10/31/proposal-a-consistent-spacing-system-for-wordpress/
+ */
+/**
+ * Dimensions.
+ */
+/**
+ * Shadows.
+ */
+/**
+ * Editor widths.
+ */
+/**
+ * Block & Editor UI.
+ */
+/**
+ * Block paddings.
+ */
+/**
+ * React Native specific.
+ * These variables do not appear to be used anywhere else.
+ */
+/**
+*  Converts a hex value into the rgb equivalent.
+*
+* @param {string} hex - the hexadecimal value to convert
+* @return {string} comma separated rgb values
+*/
+/**
+ * Breakpoint mixins
+ */
+/**
+ * Long content fade mixin
+ *
+ * Creates a fading overlay to signify that the content is longer
+ * than the space allows.
+ */
+/**
+ * Focus styles.
+ */
+/**
+ * Applies editor left position to the selector passed as argument
+ */
+/**
+ * Styles that are reused verbatim in a few places
+ */
+/**
+ * Allows users to opt-out of animations via OS-level preferences.
+ */
+/**
+ * Reset default styles for JavaScript UI based pages.
+ * This is a WP-admin agnostic reset
+ */
+/**
+ * Reset the WP Admin page styles for Gutenberg-like pages.
+ */
+.wp-block-embed {
+  margin-right: 0;
+  margin-left: 0;
+  clear: both;
+}
+.wp-block-embed.is-loading {
+  display: flex;
+  justify-content: center;
+}
+.wp-block-embed .components-placeholder__error {
+  word-break: break-word;
+}
+.wp-block-embed .components-placeholder__learn-more {
+  margin-top: 1em;
+}
+
+.block-library-embed__interactive-overlay {
+  position: absolute;
+  top: 0;
+  right: 0;
+  left: 0;
+  bottom: 0;
+  opacity: 0;
+}
+
+.wp-block[data-align=left] > .wp-block-embed,
+.wp-block[data-align=right] > .wp-block-embed {
+  max-width: 360px;
+  width: 100%;
+}
+.wp-block[data-align=left] > .wp-block-embed .wp-block-embed__wrapper,
+.wp-block[data-align=right] > .wp-block-embed .wp-block-embed__wrapper {
+  min-width: 280px;
+}

wp-includes/blocks/embed/editor-rtl.min.css

@@ -0,0 +1 @@
+.wp-block-embed{margin-right:0;margin-left:0;clear:both}.wp-block-embed.is-loading{display:flex;justify-content:center}.wp-block-embed .components-placeholder__error{word-break:break-word}.wp-block-embed .components-placeholder__learn-more{margin-top:1em}.block-library-embed__interactive-overlay{position:absolute;top:0;right:0;left:0;bottom:0;opacity:0}.wp-block[data-align=left]>.wp-block-embed,.wp-block[data-align=right]>.wp-block-embed{max-width:360px;width:100%}.wp-block[data-align=left]>.wp-block-embed .wp-block-embed__wrapper,.wp-block[data-align=right]>.wp-block-embed .wp-block-embed__wrapper{min-width:280px}

wp-includes/blocks/embed/editor.css

@@ -0,0 +1,110 @@
+/**
+ * Colors
+ */
+/**
+ * Breakpoints & Media Queries
+ */
+/**
+ * SCSS Variables.
+ *
+ * Please use variables from this sheet to ensure consistency across the UI.
+ * Don't add to this sheet unless you're pretty sure the value will be reused in many places.
+ * For example, don't add rules to this sheet that affect block visuals. It's purely for UI.
+ */
+/**
+ * Colors
+ */
+/**
+ * Fonts & basic variables.
+ */
+/**
+ * Grid System.
+ * https://make.wordpress.org/design/2019/10/31/proposal-a-consistent-spacing-system-for-wordpress/
+ */
+/**
+ * Dimensions.
+ */
+/**
+ * Shadows.
+ */
+/**
+ * Editor widths.
+ */
+/**
+ * Block & Editor UI.
+ */
+/**
+ * Block paddings.
+ */
+/**
+ * React Native specific.
+ * These variables do not appear to be used anywhere else.
+ */
+/**
+*  Converts a hex value into the rgb equivalent.
+*
+* @param {string} hex - the hexadecimal value to convert
+* @return {string} comma separated rgb values
+*/
+/**
+ * Breakpoint mixins
+ */
+/**
+ * Long content fade mixin
+ *
+ * Creates a fading overlay to signify that the content is longer
+ * than the space allows.
+ */
+/**
+ * Focus styles.
+ */
+/**
+ * Applies editor left position to the selector passed as argument
+ */
+/**
+ * Styles that are reused verbatim in a few places
+ */
+/**
+ * Allows users to opt-out of animations via OS-level preferences.
+ */
+/**
+ * Reset default styles for JavaScript UI based pages.
+ * This is a WP-admin agnostic reset
+ */
+/**
+ * Reset the WP Admin page styles for Gutenberg-like pages.
+ */
+.wp-block-embed {
+  margin-left: 0;
+  margin-right: 0;
+  clear: both;
+}
+.wp-block-embed.is-loading {
+  display: flex;
+  justify-content: center;
+}
+.wp-block-embed .components-placeholder__error {
+  word-break: break-word;
+}
+.wp-block-embed .components-placeholder__learn-more {
+  margin-top: 1em;
+}
+
+.block-library-embed__interactive-overlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  opacity: 0;
+}
+
+.wp-block[data-align=left] > .wp-block-embed,
+.wp-block[data-align=right] > .wp-block-embed {
+  max-width: 360px;
+  width: 100%;
+}
+.wp-block[data-align=left] > .wp-block-embed .wp-block-embed__wrapper,
+.wp-block[data-align=right] > .wp-block-embed .wp-block-embed__wrapper {
+  min-width: 280px;
+}

wp-includes/blocks/embed/editor.min.css

@@ -0,0 +1 @@
+.wp-block-embed{margin-left:0;margin-right:0;clear:both}.wp-block-embed.is-loading{display:flex;justify-content:center}.wp-block-embed .components-placeholder__error{word-break:break-word}.wp-block-embed .components-placeholder__learn-more{margin-top:1em}.block-library-embed__interactive-overlay{position:absolute;top:0;left:0;right:0;bottom:0;opacity:0}.wp-block[data-align=left]>.wp-block-embed,.wp-block[data-align=right]>.wp-block-embed{max-width:360px;width:100%}.wp-block[data-align=left]>.wp-block-embed .wp-block-embed__wrapper,.wp-block[data-align=right]>.wp-block-embed .wp-block-embed__wrapper{min-width:280px}

wp-includes/blocks/embed/style-rtl.css

@@ -0,0 +1,146 @@
+/**
+ * Colors
+ */
+/**
+ * Breakpoints & Media Queries
+ */
+/**
+ * SCSS Variables.
+ *
+ * Please use variables from this sheet to ensure consistency across the UI.
+ * Don't add to this sheet unless you're pretty sure the value will be reused in many places.
+ * For example, don't add rules to this sheet that affect block visuals. It's purely for UI.
+ */
+/**
+ * Colors
+ */
+/**
+ * Fonts & basic variables.
+ */
+/**
+ * Grid System.
+ * https://make.wordpress.org/design/2019/10/31/proposal-a-consistent-spacing-system-for-wordpress/
+ */
+/**
+ * Dimensions.
+ */
+/**
+ * Shadows.
+ */
+/**
+ * Editor widths.
+ */
+/**
+ * Block & Editor UI.
+ */
+/**
+ * Block paddings.
+ */
+/**
+ * React Native specific.
+ * These variables do not appear to be used anywhere else.
+ */
+/**
+*  Converts a hex value into the rgb equivalent.
+*
+* @param {string} hex - the hexadecimal value to convert
+* @return {string} comma separated rgb values
+*/
+/**
+ * Breakpoint mixins
+ */
+/**
+ * Long content fade mixin
+ *
+ * Creates a fading overlay to signify that the content is longer
+ * than the space allows.
+ */
+/**
+ * Focus styles.
+ */
+/**
+ * Applies editor left position to the selector passed as argument
+ */
+/**
+ * Styles that are reused verbatim in a few places
+ */
+/**
+ * Allows users to opt-out of animations via OS-level preferences.
+ */
+/**
+ * Reset default styles for JavaScript UI based pages.
+ * This is a WP-admin agnostic reset
+ */
+/**
+ * Reset the WP Admin page styles for Gutenberg-like pages.
+ */
+.wp-block[data-align=left] > [data-type="core/embed"],
+.wp-block[data-align=right] > [data-type="core/embed"],
+.wp-block-embed.alignleft,
+.wp-block-embed.alignright {
+  max-width: 360px;
+  width: 100%;
+}
+.wp-block[data-align=left] > [data-type="core/embed"] .wp-block-embed__wrapper,
+.wp-block[data-align=right] > [data-type="core/embed"] .wp-block-embed__wrapper,
+.wp-block-embed.alignleft .wp-block-embed__wrapper,
+.wp-block-embed.alignright .wp-block-embed__wrapper {
+  min-width: 280px;
+}
+
+.wp-block-cover .wp-block-embed {
+  min-width: 320px;
+  min-height: 240px;
+}
+
+.wp-block-embed {
+  overflow-wrap: break-word;
+}
+.wp-block-embed figcaption {
+  margin-top: 0.5em;
+  margin-bottom: 1em;
+}
+.wp-block-embed iframe {
+  max-width: 100%;
+}
+
+.wp-block-embed__wrapper {
+  position: relative;
+}
+
+.wp-embed-responsive .wp-has-aspect-ratio .wp-block-embed__wrapper::before {
+  content: "";
+  display: block;
+  padding-top: 50%;
+}
+.wp-embed-responsive .wp-has-aspect-ratio iframe {
+  position: absolute;
+  top: 0;
+  left: 0;
+  bottom: 0;
+  right: 0;
+  height: 100%;
+  width: 100%;
+}
+
+.wp-embed-responsive .wp-embed-aspect-21-9 .wp-block-embed__wrapper::before {
+  padding-top: 42.85%;
+}
+.wp-embed-responsive .wp-embed-aspect-18-9 .wp-block-embed__wrapper::before {
+  padding-top: 50%;
+}
+.wp-embed-responsive .wp-embed-aspect-16-9 .wp-block-embed__wrapper::before {
+  padding-top: 56.25%;
+}
+.wp-embed-responsive .wp-embed-aspect-4-3 .wp-block-embed__wrapper::before {
+  padding-top: 75%;
+}
+.wp-embed-responsive .wp-embed-aspect-1-1 .wp-block-embed__wrapper::before {
+  padding-top: 100%;
+}
+.wp-embed-responsive .wp-embed-aspect-9-16 .wp-block-embed__wrapper::before {
+  padding-top: 177.77%;
+}
+.wp-embed-responsive .wp-embed-aspect-1-2 .wp-block-embed__wrapper::before {
+  padding-top: 200%;
+}

wp-includes/blocks/embed/style-rtl.min.css

@@ -0,0 +1 @@
+.wp-block-embed.alignleft,.wp-block-embed.alignright,.wp-block[data-align=left]>[data-type="core/embed"],.wp-block[data-align=right]>[data-type="core/embed"]{max-width:360px;width:100%}.wp-block-embed.alignleft .wp-block-embed__wrapper,.wp-block-embed.alignright .wp-block-embed__wrapper,.wp-block[data-align=left]>[data-type="core/embed"] .wp-block-embed__wrapper,.wp-block[data-align=right]>[data-type="core/embed"] .wp-block-embed__wrapper{min-width:280px}.wp-block-cover .wp-block-embed{min-width:320px;min-height:240px}.wp-block-embed{overflow-wrap:break-word}.wp-block-embed figcaption{margin-top:.5em;margin-bottom:1em}.wp-block-embed iframe{max-width:100%}.wp-block-embed__wrapper{position:relative}.wp-embed-responsive .wp-has-aspect-ratio .wp-block-embed__wrapper:before{content:"";display:block;padding-top:50%}.wp-embed-responsive .wp-has-aspect-ratio iframe{position:absolute;top:0;left:0;bottom:0;right:0;height:100%;width:100%}.wp-embed-responsive .wp-embed-aspect-21-9 .wp-block-embed__wrapper:before{padding-top:42.85%}.wp-embed-responsive .wp-embed-aspect-18-9 .wp-block-embed__wrapper:before{padding-top:50%}.wp-embed-responsive .wp-embed-aspect-16-9 .wp-block-embed__wrapper:before{padding-top:56.25%}.wp-embed-responsive .wp-embed-aspect-4-3 .wp-block-embed__wrapper:before{padding-top:75%}.wp-embed-responsive .wp-embed-aspect-1-1 .wp-block-embed__wrapper:before{padding-top:100%}.wp-embed-responsive .wp-embed-aspect-9-16 .wp-block-embed__wrapper:before{padding-top:177.77%}.wp-embed-responsive .wp-embed-aspect-1-2 .wp-block-embed__wrapper:before{padding-top:200%}

wp-includes/blocks/embed/style.css

@@ -0,0 +1,146 @@
+/**
+ * Colors
+ */
+/**
+ * Breakpoints & Media Queries
+ */
+/**
+ * SCSS Variables.
+ *
+ * Please use variables from this sheet to ensure consistency across the UI.
+ * Don't add to this sheet unless you're pretty sure the value will be reused in many places.
+ * For example, don't add rules to this sheet that affect block visuals. It's purely for UI.
+ */
+/**
+ * Colors
+ */
+/**
+ * Fonts & basic variables.
+ */
+/**
+ * Grid System.
+ * https://make.wordpress.org/design/2019/10/31/proposal-a-consistent-spacing-system-for-wordpress/
+ */
+/**
+ * Dimensions.
+ */
+/**
+ * Shadows.
+ */
+/**
+ * Editor widths.
+ */
+/**
+ * Block & Editor UI.
+ */
+/**
+ * Block paddings.
+ */
+/**
+ * React Native specific.
+ * These variables do not appear to be used anywhere else.
+ */
+/**
+*  Converts a hex value into the rgb equivalent.
+*
+* @param {string} hex - the hexadecimal value to convert
+* @return {string} comma separated rgb values
+*/
+/**
+ * Breakpoint mixins
+ */
+/**
+ * Long content fade mixin
+ *
+ * Creates a fading overlay to signify that the content is longer
+ * than the space allows.
+ */
+/**
+ * Focus styles.
+ */
+/**
+ * Applies editor left position to the selector passed as argument
+ */
+/**
+ * Styles that are reused verbatim in a few places
+ */
+/**
+ * Allows users to opt-out of animations via OS-level preferences.
+ */
+/**
+ * Reset default styles for JavaScript UI based pages.
+ * This is a WP-admin agnostic reset
+ */
+/**
+ * Reset the WP Admin page styles for Gutenberg-like pages.
+ */
+.wp-block[data-align=left] > [data-type="core/embed"],
+.wp-block[data-align=right] > [data-type="core/embed"],
+.wp-block-embed.alignleft,
+.wp-block-embed.alignright {
+  max-width: 360px;
+  width: 100%;
+}
+.wp-block[data-align=left] > [data-type="core/embed"] .wp-block-embed__wrapper,
+.wp-block[data-align=right] > [data-type="core/embed"] .wp-block-embed__wrapper,
+.wp-block-embed.alignleft .wp-block-embed__wrapper,
+.wp-block-embed.alignright .wp-block-embed__wrapper {
+  min-width: 280px;
+}
+
+.wp-block-cover .wp-block-embed {
+  min-width: 320px;
+  min-height: 240px;
+}
+
+.wp-block-embed {
+  overflow-wrap: break-word;
+}
+.wp-block-embed figcaption {
+  margin-top: 0.5em;
+  margin-bottom: 1em;
+}
+.wp-block-embed iframe {
+  max-width: 100%;
+}
+
+.wp-block-embed__wrapper {
+  position: relative;
+}
+
+.wp-embed-responsive .wp-has-aspect-ratio .wp-block-embed__wrapper::before {
+  content: "";
+  display: block;
+  padding-top: 50%;
+}
+.wp-embed-responsive .wp-has-aspect-ratio iframe {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  height: 100%;
+  width: 100%;
+}
+
+.wp-embed-responsive .wp-embed-aspect-21-9 .wp-block-embed__wrapper::before {
+  padding-top: 42.85%;
+}
+.wp-embed-responsive .wp-embed-aspect-18-9 .wp-block-embed__wrapper::before {
+  padding-top: 50%;
+}
+.wp-embed-responsive .wp-embed-aspect-16-9 .wp-block-embed__wrapper::before {
+  padding-top: 56.25%;
+}
+.wp-embed-responsive .wp-embed-aspect-4-3 .wp-block-embed__wrapper::before {
+  padding-top: 75%;
+}
+.wp-embed-responsive .wp-embed-aspect-1-1 .wp-block-embed__wrapper::before {
+  padding-top: 100%;
+}
+.wp-embed-responsive .wp-embed-aspect-9-16 .wp-block-embed__wrapper::before {
+  padding-top: 177.77%;
+}
+.wp-embed-responsive .wp-embed-aspect-1-2 .wp-block-embed__wrapper::before {
+  padding-top: 200%;
+}

wp-includes/blocks/embed/style.min.css

@@ -0,0 +1 @@
+.wp-block-embed.alignleft,.wp-block-embed.alignright,.wp-block[data-align=left]>[data-type="core/embed"],.wp-block[data-align=right]>[data-type="core/embed"]{max-width:360px;width:100%}.wp-block-embed.alignleft .wp-block-embed__wrapper,.wp-block-embed.alignright .wp-block-embed__wrapper,.wp-block[data-align=left]>[data-type="core/embed"] .wp-block-embed__wrapper,.wp-block[data-align=right]>[data-type="core/embed"] .wp-block-embed__wrapper{min-width:280px}.wp-block-cover .wp-block-embed{min-width:320px;min-height:240px}.wp-block-embed{overflow-wrap:break-word}.wp-block-embed figcaption{margin-top:.5em;margin-bottom:1em}.wp-block-embed iframe{max-width:100%}.wp-block-embed__wrapper{position:relative}.wp-embed-responsive .wp-has-aspect-ratio .wp-block-embed__wrapper:before{content:"";display:block;padding-top:50%}.wp-embed-responsive .wp-has-aspect-ratio iframe{position:absolute;top:0;right:0;bottom:0;left:0;height:100%;width:100%}.wp-embed-responsive .wp-embed-aspect-21-9 .wp-block-embed__wrapper:before{padding-top:42.85%}.wp-embed-responsive .wp-embed-aspect-18-9 .wp-block-embed__wrapper:before{padding-top:50%}.wp-embed-responsive .wp-embed-aspect-16-9 .wp-block-embed__wrapper:before{padding-top:56.25%}.wp-embed-responsive .wp-embed-aspect-4-3 .wp-block-embed__wrapper:before{padding-top:75%}.wp-embed-responsive .wp-embed-aspect-1-1 .wp-block-embed__wrapper:before{padding-top:100%}.wp-embed-responsive .wp-embed-aspect-9-16 .wp-block-embed__wrapper:before{padding-top:177.77%}.wp-embed-responsive .wp-embed-aspect-1-2 .wp-block-embed__wrapper:before{padding-top:200%}

wp-includes/blocks/embed/theme-rtl.css

@@ -0,0 +1,88 @@
+/**
+ * Colors
+ */
+/**
+ * Breakpoints & Media Queries
+ */
+/**
+ * SCSS Variables.
+ *
+ * Please use variables from this sheet to ensure consistency across the UI.
+ * Don't add to this sheet unless you're pretty sure the value will be reused in many places.
+ * For example, don't add rules to this sheet that affect block visuals. It's purely for UI.
+ */
+/**
+ * Colors
+ */
+/**
+ * Fonts & basic variables.
+ */
+/**
+ * Grid System.
+ * https://make.wordpress.org/design/2019/10/31/proposal-a-consistent-spacing-system-for-wordpress/
+ */
+/**
+ * Dimensions.
+ */
+/**
+ * Shadows.
+ */
+/**
+ * Editor widths.
+ */
+/**
+ * Block & Editor UI.
+ */
+/**
+ * Block paddings.
+ */
+/**
+ * React Native specific.
+ * These variables do not appear to be used anywhere else.
+ */
+/**
+*  Converts a hex value into the rgb equivalent.
+*
+* @param {string} hex - the hexadecimal value to convert
+* @return {string} comma separated rgb values
+*/
+/**
+ * Breakpoint mixins
+ */
+/**
+ * Long content fade mixin
+ *
+ * Creates a fading overlay to signify that the content is longer
+ * than the space allows.
+ */
+/**
+ * Focus styles.
+ */
+/**
+ * Applies editor left position to the selector passed as argument
+ */
+/**
+ * Styles that are reused verbatim in a few places
+ */
+/**
+ * Allows users to opt-out of animations via OS-level preferences.
+ */
+/**
+ * Reset default styles for JavaScript UI based pages.
+ * This is a WP-admin agnostic reset
+ */
+/**
+ * Reset the WP Admin page styles for Gutenberg-like pages.
+ */
+.wp-block-embed figcaption {
+  color: #555;
+  font-size: 13px;
+  text-align: center;
+}
+.is-dark-theme .wp-block-embed figcaption {
+  color: rgba(255, 255, 255, 0.65);
+}
+
+.wp-block-embed {
+  margin: 0 0 1em 0;
+}

wp-includes/blocks/embed/theme-rtl.min.css

@@ -0,0 +1 @@
+.wp-block-embed figcaption{color:#555;font-size:13px;text-align:center}.is-dark-theme .wp-block-embed figcaption{color:hsla(0,0%,100%,.65)}.wp-block-embed{margin:0 0 1em}

wp-includes/blocks/embed/theme.css

@@ -0,0 +1,88 @@
+/**
+ * Colors
+ */
+/**
+ * Breakpoints & Media Queries
+ */
+/**
+ * SCSS Variables.
+ *
+ * Please use variables from this sheet to ensure consistency across the UI.
+ * Don't add to this sheet unless you're pretty sure the value will be reused in many places.
+ * For example, don't add rules to this sheet that affect block visuals. It's purely for UI.
+ */
+/**
+ * Colors
+ */
+/**
+ * Fonts & basic variables.
+ */
+/**
+ * Grid System.
+ * https://make.wordpress.org/design/2019/10/31/proposal-a-consistent-spacing-system-for-wordpress/
+ */
+/**
+ * Dimensions.
+ */
+/**
+ * Shadows.
+ */
+/**
+ * Editor widths.
+ */
+/**
+ * Block & Editor UI.
+ */
+/**
+ * Block paddings.
+ */
+/**
+ * React Native specific.
+ * These variables do not appear to be used anywhere else.
+ */
+/**
+*  Converts a hex value into the rgb equivalent.
+*
+* @param {string} hex - the hexadecimal value to convert
+* @return {string} comma separated rgb values
+*/
+/**
+ * Breakpoint mixins
+ */
+/**
+ * Long content fade mixin
+ *
+ * Creates a fading overlay to signify that the content is longer
+ * than the space allows.
+ */
+/**
+ * Focus styles.
+ */
+/**
+ * Applies editor left position to the selector passed as argument
+ */
+/**
+ * Styles that are reused verbatim in a few places
+ */
+/**
+ * Allows users to opt-out of animations via OS-level preferences.
+ */
+/**
+ * Reset default styles for JavaScript UI based pages.
+ * This is a WP-admin agnostic reset
+ */
+/**
+ * Reset the WP Admin page styles for Gutenberg-like pages.
+ */
+.wp-block-embed figcaption {
+  color: #555;
+  font-size: 13px;
+  text-align: center;
+}
+.is-dark-theme .wp-block-embed figcaption {
+  color: rgba(255, 255, 255, 0.65);
+}
+
+.wp-block-embed {
+  margin: 0 0 1em 0;
+}

wp-includes/blocks/embed/theme.min.css

@@ -0,0 +1 @@
+.wp-block-embed figcaption{color:#555;font-size:13px;text-align:center}.is-dark-theme .wp-block-embed figcaption{color:hsla(0,0%,100%,.65)}.wp-block-embed{margin:0 0 1em}