JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://code.angularjs.org/1.2.15/angular.js"></script>
<script src="http://code.angularjs.org/1.2.15/angular-animate.js"></script>
<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
<div ng-controller="MyCtrl">
    <ul id="items">
        <li ng-repeat="item in items" class="repeated-item">
            <div class="close" ng-click="removeItem($index)">&times;</div>
            {{item.label}}
        </li>
    </ul>
    <button type="button" ng-click="addItem()">Add</button>
</div>

CSS

#items { list-style: none; }

.repeated-item {
    position: relative;
    margin: 3px 3px 3px 0;
    padding: 1px;
    width: 100px;
    height: 90px;
    font-size: 4em;
    text-align: center;
    border: solid 1px #333;
    background-color: #eaa10e;
}

.close {
    position: absolute;
    top: 0;
    right: 0;
    width: 16px;
    height: 16px;
    line-height: 16px;
    font-size: 16px;
    color: white;
    background-color: rgb(218, 77, 11);
    border: 1px solid rgb(128, 0, 0);
}

.close:hover {
    cursor: pointer;
    background-color: rgb(255, 81, 0);
}

/*
 * Animations 
 * ---------- */

.repeated-item.ng-enter {
    -webkit-transition:0.5s linear all;
    -moz-transition:0.5s linear all;
    -o-transition:0.5s linear all;
    transition:0.5s linear all;
    max-height: 0;
    opacity: 0;
    left: -50px;
}
 
.repeated-item.ng-enter.ng-enter-active {
    max-height: 90px;
    opacity: 1;
    left: 0;
}
 
.repeated-item.ng-leave {
  -webkit-animation:0.5s my_animation;
  -moz-animation:0.5s my_animation;
  -o-animation:0.5s my_animation;
  animation:0.5s my_animation;
}
 
@keyframes my_animation {
  from {
    max-height: 90px;
    opacity: 1;
    left: 0;
  }
  to {
    max-height: 0;
    opacity: 0;
    left: -50px;
  }
}
 
/*
  Unfortunately each browser vendor requires
  its own definition of keyframe animation code...
*/
@-webkit-keyframes my_animation {
  from {
    max-height: 90px;
    opacity: 1;
    left: 0;
  }
  to {
    max-height: 0;
    opacity: 0;
    left: -50px;
  }
}
 
@-moz-keyframes my_animation {
  from {
    max-height: 90px;
    opacity: 1;
    left: 0;
  }
  to {
    max-height: 0;
    opacity: 0;
    left: -50px;
  }
}
 
@-o-keyframes my_animation {
  from {
    max-height: 90px;
    opacity: 1;
    left: 0;
  }
  to {
    max-height: 0;
    opacity: 0;
    left: -50px;
  }
}

JavaScript

var myApp = angular.module('myApp', ['ngAnimate']);

myApp.controller('MyCtrl', function ($scope) {
    $scope.items = []
    $scope.counter = 1;
    for (; $scope.counter <= 5; $scope.counter++) {
        $scope.items.push({ label: $scope.counter });
    }
    
    $scope.addItem = function () {
        $scope.items.push({ label: $scope.counter++ });
    };
    
    $scope.removeItem = function (index) {
        $scope.items.splice(index, 1);
    };
});

// Alternatively, you can use JavaScript-based animations.
// Simply get rid of the CSS-based animations, and uncomment
// below code.
/*
myApp.animation('.repeated-item', function () {
    return {
        enter: function (element, done) {
            element.css({
                left: '-50px',
                height: 0,
                opacity: 0
            });
            $(element).animate({
                left: 0,
                height: '90px',
                opacity: 1
            }, done);

            return function (isCancelled) {
                $(element).css('max-height', '');
            };
        },
        leave: function (element, done) {
            element.css({
                height: $(element).css('height')
            });
            $(element).animate({
                left: '50px',
                height: 0,
                //opacity: 0
            }, done);
        }
    };
});
*/