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HTML 

              
                <!-- tell angular this is flexboxDemoApp -->
<html lang="en" ng-app="flexboxDemoApp">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Игровая площадка Flexbox из CSS3  </title>
    <!-- Angulars Material CSS -->
    <link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/angular_material/0.8.3/angular-material.min.css">
    <!-- include our compiled CSS -->
    <link href="css/style.css" rel="stylesheet">
  </head>
  <!-- this will be the only controller AppCtrl -->
  <body ng-controller="AppCtrl">
    <!-- Here's the main container -->
    <md-content class="md-padding">
      <div layout-gt-md="row" layout="column">
        <div flex-gt-md="66" flex="100" class="right-padding">
          <h3>Ширина дочерних элементов</h3>
          <div layout="row" layout-align="center center" class="code">
            <div flex="15">width: {{children_width}}%</div>
            <md-slider flex min="0" max="100" ng-model="children_width" aria-label="width"></md-slider>
          </div>

          <md-divider></md-divider>

          <h3>Свойства родительского flex-элемента &ndash; <span class="highlight">flex-контейнер</span></h3>
          <div layout="column" layout-gt-md="row" class="code">
            <div layout="row">
              <div flex>
                <strong>flex-direction</strong>
                <md-radio-group ng-model="parent.flexDirection">
                  <md-radio-button value="row" class="highlight">row</md-radio-button>
                  <md-radio-button value="row-reverse">row-reverse</md-radio-button>
                  <md-radio-button value="column">column</md-radio-button>
                  <md-radio-button value="column-reverse">column-reverse</md-radio-button>
                </md-radio-group>
              </div>
              
              <div flex>
                <strong>flex-wrap</strong>
                <md-radio-group ng-model="parent.flexWrap">
                  <md-radio-button value="nowrap" class="highlight">nowrap</md-radio-button>
                  <md-radio-button value="wrap">wrap</md-radio-button>
                  <md-radio-button value="wrap-reverse">wrap-reverse</md-radio-button>
                </md-radio-group>
              </div>
            </div>

            <div layout="row">
              <div flex>
                <strong>justify-content</strong>
                <md-radio-group ng-model="parent.justifyContent">
                  <md-radio-button value="flex-start" class="highlight">flex-start</md-radio-button>
                  <md-radio-button value="flex-end">flex-end</md-radio-button>
                  <md-radio-button value="center">center</md-radio-button>
                  <md-radio-button value="space-between">space-between</md-radio-button>
                  <md-radio-button value="space-around">space-around</md-radio-button>
                </md-radio-group>
              </div>

              <div flex>
                <strong>align-items</strong>
                <md-radio-group ng-model="parent.alignItems">
                  <md-radio-button value="stretch" class="highlight">stretch</md-radio-button>
                  <md-radio-button value="flex-start">flex-start</md-radio-button>
                  <md-radio-button value="flex-end">flex-end</md-radio-button>
                  <md-radio-button value="center">center</md-radio-button>
                  <md-radio-button value="baseline">baseline</md-radio-button>
                </md-radio-group>
              </div>
            </div>

            <div layout="row">
              <div flex>
                <strong>align-content</strong>
                <md-radio-group ng-model="parent.alignContent">
                  <md-radio-button value="stretch" class="highlight">stretch</md-radio-button>
                  <md-radio-button value="flex-start">flex-start</md-radio-button>
                  <md-radio-button value="flex-end">flex-end</md-radio-button>
                  <md-radio-button value="center">center</md-radio-button>
                  <md-radio-button value="space-between">space-between</md-radio-button>
                  <md-radio-button value="space-around">space-around</md-radio-button>
                </md-radio-group>
              </div>
            </div>
          </div>

          <small>* Значение свойства по умолчанию <span class="highlight">подсвечены</span>.</small>

          <md-divider></md-divider>

          <h3>Свойства дочерних элементов &ndash; <span class="highlight">flex-элементы</span></h3>

          <div>
            <p>Свойства дочерних flex-элементов могут быть применены на дочернем уровне, раздельно для каждого элемента. Смотрите раздел с результатами и изменяйте какие-нибудь из их свойств. Наведите указатель мыши или коснитесь поля, чтобы увидеть название свойства.</p>
          </div>

          <md-divider hide show-sm show-md></md-divider>
        </div>

        <div flex>
          <h3 class="pull-left">Результат</h3>
          <p class="pull-right">
            <md-button class="md-accent md-raised" ng-click="addChild()">Добавить дочерний элемент</md-button>
          </p>

          <div class="clearfix"></div>

          <div
            class="flexbox-parent" 
            ng-attr-style="
              -webkit-flex-direction:  {{parent.flexDirection}};
              flex-direction:          {{parent.flexDirection}};

              -webkit-flex-wrap:       {{parent.flexWrap}};
              flex-wrap:               {{parent.flexWrap}};

              -webkit-justify-content: {{parent.justifyContent}};
              justify-content:         {{parent.justifyContent}};

              -webkit-align-items:     {{parent.alignItems}};
              align-items:             {{parent.alignItems}};

              -webkit-align-content:   {{parent.alignContent}};
              align-content:           {{parent.alignContent}};
              "
          >
            <div 
              class="code md-whiteframe-z1"
              ng-repeat="child in children"
              ng-attr-style="
                width:               {{children_width}}%;

                -webkit-order:       {{child.order}};
                order:               {{child.order}};

                -webkit-flex-grow:   {{child.flexGrow}};
                flex-grow:           {{child.flexGrow}};

                -webkit-flex-shrink: {{child.flexShrink}};
                flex-shrink:         {{child.flexShrink}};

                -webkit-flex-basis:  {{child.flexBasis}};
                flex-basis:          {{child.flexBasis}};

                -webkit-align-self:  {{child.alignSelf}};
                align-self:          {{child.alignSelf}};

              "
            >
              <div class="clearfix">
                <span class="child-number" aria-label="Number">{{$index + 1}}</span>
                <span class="remove-child pull-right" ng-click="removeChild($index)" title="Remove">
                  &#x2716;
                </span>
              </div>

              <div class="child-controls">
                <md-input-container>
                  <md-tooltip md-direction="top">order</md-tooltip>
                  <input type="number" ng-model="children[$index].order">
                </md-input-container>

                <md-input-container>
                  <md-tooltip md-direction="top">flex-grow</md-tooltip>
                  <input type="number" ng-model="children[$index].flexGrow">
                </md-input-container>

                <md-input-container>
                  <md-tooltip md-direction="top">flex-shrink</md-tooltip>
                  <input type="number" ng-model="children[$index].flexShrink">
                </md-input-container>

                <md-input-container>
                  <md-tooltip md-direction="top">flex-basis</md-tooltip>
                  <input type="text" ng-model="children[$index].flexBasis">
                </md-input-container>

                <md-input-container>
                  <md-tooltip md-direction="top">align-self</md-tooltip>
                  <md-select ng-model="children[$index].alignSelf">
                    <md-option ng-value="value" ng-repeat="value in ['auto', 'flex-start', 'flex-end', 'center', 'baseline', 'stretch']">{{value}}</md-option>
                  </md-select>
                </md-input-container>
              </div>
                
            </div>
          </div>
        </div>
      </div>
    </md-content>
    
    <!-- AngularJS -->
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.6/angular-animate.min.js"></script>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.6/angular-aria.min.js"></script>

    <!-- Angular Material JavaScript -->
    <script src="https://ajax.googleapis.com/ajax/libs/angular_material/0.8.3/angular-material.min.js"></script>

    <!-- App.js -->
    <script src="js/app.js"></script>
  </body>
</html>
!

CSS 

              
                @import "compass/css3";

@import "compass";

// Flex container
.flexbox-parent {
  @include display-flex;
  background: #FFD54F;
  overflow: hidden;
  width: 100%;
  padding: 3px;
  min-height: 550px;
  max-height: 1000px;

  // Flex items
  > div {
    display: inline-block;
    background: white;
    overflow: hidden;
    margin: 3px;
    padding: 5px;

    .child-controls {
      margin-top: 7px;
    }
  }
}

.child-number {
  display: block;
  width: 22px;
  height: 22px;
  background: #FFB300;
  color: white;
  font-size: 14px;
  font-weight: bold;
  padding-top: 3px;
  text-align: center;
  @include border-radius(50%);
  float: left;
}

.code {
  font-family: Consolas, "Courier New", Monospace;
  font-size: 15px;
}

.remove-child {
  background: transparent;
  color: #FF6F00;
  font-size: 14px;
  cursor: pointer;
}

.highlight {
  color: #FF8F00;
}

.pull-left {
  float: left;
}

.pull-right {
  float: right;
}

.clearfix {
  &:after {
    content: '';
    display: block;
    clear: both;
  }
}

.right-padding {
  padding-right: 15px;
}

h3 {
  margin: 0 0 10px 0 !important;
}

p {
  margin: 0 0 10px 0 !important;
  line-height: 1.4em !important;
}

md-input-container {
  padding: 0 0 5px 0 !important;

  .md-input {
    padding: 0 !important;
    line-height: 1em !important;
  }
}

md-select {
  margin-top: 0 !important;

  .md-select-label {
    padding-top: 2px !important;
    padding-bottom: 4px !important;
  }
}

md-radio-button {
  margin: 5px 10px !important;
}

md-divider {
  margin: 10px 0 !important;
}
!

JS 

              
                // Declare the flexboxDemoApp module and its dependency 'ngMaterial'
var app = angular.module('flexboxDemoApp', ['ngMaterial']);
// Declare the AppCtrl controller
app
.config(['$mdThemingProvider', function ($mdThemingProvider) {
  $mdThemingProvider
    .theme('default')
    .accentPalette('amber', {
      default: '700'
    });
}])
.controller('AppCtrl', ['$scope', function ($scope) {
  $scope.parent = {
    flexDirection:  'row',
    flexWrap:       'nowrap',
    justifyContent: 'flex-start',
    alignItems:     'stretch',
    alignContent:   'stretch'
  };

  $scope.children_width = 12; // %

  $scope.children  = [];

  var addChild = function (order, flexGrow, flexShrink, flexBasis, alignSelf) {
    $scope.children.push({
      order:      order      || 0,
      flexGrow:   flexGrow   || 0,
      flexShrink: flexShrink || 1,
      flexBasis:  flexBasis  || 'auto',
      alignSelf:  alignSelf  || 'auto'
    });
  };
  var removeChild = function (index) {
    $scope.children.splice(index, 1);
  };

  $scope.addChild    = addChild;
  $scope.removeChild = removeChild;

  for (var i = 0; i < 5; i++) {
    addChild();
  }
    
}]);
!
999px

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