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+## Introduction
+
+The Material Design Lite (MDL) **progress** component is a visual indicator of background activity in a web page or application. A progress indicator consists of a (typically) horizontal bar containing some animation that conveys a sense of motion. While some progress devices indicate an approximate or specific percentage of completion, the MDL progress component simply communicates the fact that an activity is ongoing and is not yet complete.
+
+Progress indicators are an established but non-standardized feature in user interfaces, and provide users with a visual clue to an application's status. Their design and use is therefore an important factor in the overall user experience. See the progress component's [Material Design specifications page](http://www.google.com/design/spec/components/progress-activity.html) for details.
+
+### To include an MDL **progress** component:
+
+&nbsp;1. Code a `<div>` element. Include any desired attributes and values, such as an id or width &mdash; typically done using external CSS rather than the inline `style` attribute as shown here.
+```html
+<div id="prog1" style="width:250px"></div>
+```
+&nbsp;2. Add one or more MDL classes, separated by spaces, to the div using the `class` attribute.
+```html
+<div id="prog1" style="width:250px" class="mdl-js-progress"></div>
+```
+
+The progress component is ready for use.
+
+#### Examples
+
+A static (non-animated) progress indicator.
+```html
+<div id="progstatic" style="width:250px" class="mdl-js-progress"></div>
+```
+
+An active (animated) progress indicator.
+```html
+<div id="progactive" style="width:200px" class="mdl-js-progress
+ mdl-progress--indeterminate"></div>
+```
+
+## Configuration options
+
+The MDL CSS classes apply various predefined visual and behavioral enhancements to the progress indicator. The table below lists the available classes and their effects.
+
+| MDL class | Effect | Remarks |
+|-----------|--------|---------|
+| `mdl-js-progress` | Assigns basic MDL behavior to progress indicator | Required |
+| `mdl-progress--indeterminate` | Applies animation effect | Optional |
+
+> Note: `mdl-progress__intermediate` does exist within the codebase. It is deprecated since the name is not in BEM alignment. It will be removed in 2.0.
diff --git a/node_modules/material-design-lite/src/progress/_progress.scss b/node_modules/material-design-lite/src/progress/_progress.scss
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+/**
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+@import "../variables";
+
+.mdl-progress {
+  display: block;
+  position: relative;
+  height: $bar-height;
+  width: 500px;
+  max-width: 100%;
+}
+
+.mdl-progress > .bar {
+  display: block;
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  width: 0%;
+  transition: width 0.2s $animation-curve-default;
+}
+
+.mdl-progress > .progressbar {
+  background-color: $progress-main-color;
+  z-index: 1;
+  left: 0;
+}
+
+.mdl-progress > .bufferbar {
+  background-image: linear-gradient(to right, $progress-secondary-color, $progress-secondary-color),
+    linear-gradient(to right, $progress-main-color, $progress-main-color);
+  z-index: 0;
+  left: 0;
+}
+
+.mdl-progress > .auxbar {
+  right: 0;
+}
+
+// Webkit only
+@supports (-webkit-appearance:none) {
+  .mdl-progress:not(.mdl-progress--indeterminate):not(.mdl-progress--indeterminate) > .auxbar,
+  .mdl-progress:not(.mdl-progress__indeterminate):not(.mdl-progress__indeterminate) > .auxbar {
+    background-image: linear-gradient(to right, $progress-secondary-color, $progress-secondary-color),
+      linear-gradient(to right, $progress-main-color, $progress-main-color);
+    mask: url('#{$progress-image-path}/buffer.svg?embed');
+  }
+}
+
+.mdl-progress:not(.mdl-progress--indeterminate) > .auxbar,
+.mdl-progress:not(.mdl-progress__indeterminate) > .auxbar {
+  background-image: linear-gradient(to right, $progress-fallback-buffer-color, $progress-fallback-buffer-color),
+    linear-gradient(to right, $progress-main-color, $progress-main-color);
+}
+
+.mdl-progress.mdl-progress--indeterminate > .bar1,
+.mdl-progress.mdl-progress__indeterminate > .bar1 {
+  background-color: $progress-main-color;
+  animation-name: indeterminate1;
+  animation-duration: 2s;
+  animation-iteration-count: infinite;
+  animation-timing-function: linear;
+}
+
+.mdl-progress.mdl-progress--indeterminate > .bar3,
+.mdl-progress.mdl-progress__indeterminate > .bar3 {
+  background-image: none;
+  background-color: $progress-main-color;
+  animation-name: indeterminate2;
+  animation-duration: 2s;
+  animation-iteration-count: infinite;
+  animation-timing-function: linear;
+}
+
+@keyframes indeterminate1 {
+  0% {
+    left: 0%;
+    width: 0%;
+  }
+  50% {
+    left: 25%;
+    width: 75%;
+  }
+  75% {
+    left: 100%;
+    width: 0%;
+  }
+}
+
+@keyframes indeterminate2 {
+  0% {
+    left: 0%;
+    width: 0%;
+  }
+  50% {
+    left: 0%;
+    width: 0%;
+  }
+  75% {
+    left: 0%;
+    width: 25%;
+  }
+  100% {
+    left: 100%;
+    width: 0%;
+  }
+}
diff --git a/node_modules/material-design-lite/src/progress/progress.js b/node_modules/material-design-lite/src/progress/progress.js
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+/**
+ * @license
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+(function() {
+  'use strict';
+
+  /**
+   * Class constructor for Progress MDL component.
+   * Implements MDL component design pattern defined at:
+   * https://github.com/jasonmayes/mdl-component-design-pattern
+   *
+   * @constructor
+   * @param {HTMLElement} element The element that will be upgraded.
+   */
+  var MaterialProgress = function MaterialProgress(element) {
+    this.element_ = element;
+
+    // Initialize instance.
+    this.init();
+  };
+  window['MaterialProgress'] = MaterialProgress;
+
+  /**
+   * Store constants in one place so they can be updated easily.
+   *
+   * @enum {string | number}
+   * @private
+   */
+  MaterialProgress.prototype.Constant_ = {
+  };
+
+  /**
+   * Store strings for class names defined by this component that are used in
+   * JavaScript. This allows us to simply change it in one place should we
+   * decide to modify at a later date.
+   *
+   * @enum {string}
+   * @private
+   */
+  MaterialProgress.prototype.CssClasses_ = {
+    INDETERMINATE_CLASS: 'mdl-progress__indeterminate'
+  };
+
+  /**
+   * Set the current progress of the progressbar.
+   *
+   * @param {number} p Percentage of the progress (0-100)
+   * @public
+   */
+  MaterialProgress.prototype.setProgress = function(p) {
+    if (this.element_.classList.contains(this.CssClasses_.INDETERMINATE_CLASS)) {
+      return;
+    }
+
+    this.progressbar_.style.width = p + '%';
+  };
+  MaterialProgress.prototype['setProgress'] =
+      MaterialProgress.prototype.setProgress;
+
+  /**
+   * Set the current progress of the buffer.
+   *
+   * @param {number} p Percentage of the buffer (0-100)
+   * @public
+   */
+  MaterialProgress.prototype.setBuffer = function(p) {
+    this.bufferbar_.style.width = p + '%';
+    this.auxbar_.style.width = (100 - p) + '%';
+  };
+  MaterialProgress.prototype['setBuffer'] =
+      MaterialProgress.prototype.setBuffer;
+
+  /**
+   * Initialize element.
+   */
+  MaterialProgress.prototype.init = function() {
+    if (this.element_) {
+      var el = document.createElement('div');
+      el.className = 'progressbar bar bar1';
+      this.element_.appendChild(el);
+      this.progressbar_ = el;
+
+      el = document.createElement('div');
+      el.className = 'bufferbar bar bar2';
+      this.element_.appendChild(el);
+      this.bufferbar_ = el;
+
+      el = document.createElement('div');
+      el.className = 'auxbar bar bar3';
+      this.element_.appendChild(el);
+      this.auxbar_ = el;
+
+      this.progressbar_.style.width = '0%';
+      this.bufferbar_.style.width = '100%';
+      this.auxbar_.style.width = '0%';
+
+      this.element_.classList.add('is-upgraded');
+    }
+  };
+
+  // The component registers itself. It can assume componentHandler is available
+  // in the global scope.
+  componentHandler.register({
+    constructor: MaterialProgress,
+    classAsString: 'MaterialProgress',
+    cssClass: 'mdl-js-progress',
+    widget: true
+  });
+})();
diff --git a/node_modules/material-design-lite/src/progress/snippets/progress-buffering-demo.html b/node_modules/material-design-lite/src/progress/snippets/progress-buffering-demo.html
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+<style>
+  .demo-progress__progress-buffering .mdl-progress {
+    width: 50vw;
+    max-width: 260px;
+  }
+</style>
+
+{% include "progress-buffering.html" %}
diff --git a/node_modules/material-design-lite/src/progress/snippets/progress-buffering.html b/node_modules/material-design-lite/src/progress/snippets/progress-buffering.html
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+<!-- MDL Progress Bar with Buffering -->
+<div id="p3" class="mdl-progress mdl-js-progress"></div>
+<script>
+  document.querySelector('#p3').addEventListener('mdl-componentupgraded', function() {
+    this.MaterialProgress.setProgress(33);
+    this.MaterialProgress.setBuffer(87);
+  });
+</script>
diff --git a/node_modules/material-design-lite/src/progress/snippets/progress-default-demo.html b/node_modules/material-design-lite/src/progress/snippets/progress-default-demo.html
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+<style>
+  .demo-progress__progress-default .mdl-progress {
+    width: 50vw;
+    max-width: 260px;
+  }
+</style>
+{% include "progress-default.html" %}
diff --git a/node_modules/material-design-lite/src/progress/snippets/progress-default.html b/node_modules/material-design-lite/src/progress/snippets/progress-default.html
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+<!-- Simple MDL Progress Bar -->
+<div id="p1" class="mdl-progress mdl-js-progress"></div>
+<script>
+  document.querySelector('#p1').addEventListener('mdl-componentupgraded', function() {
+    this.MaterialProgress.setProgress(44);
+  });
+</script>
diff --git a/node_modules/material-design-lite/src/progress/snippets/progress-indeterminate-demo.html b/node_modules/material-design-lite/src/progress/snippets/progress-indeterminate-demo.html
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+<style>
+  .demo-progress__progress-indeterminate .mdl-progress {
+    width: 50vw;
+    max-width: 260px;
+  }
+</style>
+{% include "progress-indeterminate.html" %}
diff --git a/node_modules/material-design-lite/src/progress/snippets/progress-indeterminate.html b/node_modules/material-design-lite/src/progress/snippets/progress-indeterminate.html
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+<!-- MDL Progress Bar with Indeterminate Progress -->
+<div id="p2" class="mdl-progress mdl-js-progress mdl-progress__indeterminate"></div>