t {
            from {
                -webkit-transform: rotate(-95deg);
                transform: rotate(-95deg);
            }
            to {
                -webkit-transform: rotate(-85deg);
                transform: rotate(-85deg);
            }
        }
    </style>
</head>

<body>
    <div class="trunk">
        <div>
            <div>
                <div>
                    <div>
                        <div>
                            <div>
                                <div>
           