css.css

 body {
            font-family: sans-serif;
        }

        a {
            color: #369;
        }

        .note {
            width: 500px;
            margin: 50px auto;
            font-size: 1.1em;
            color: #333;
            text-align: justify;
        }

        #drop-area {
            border: 2px dashed #ccc;
            border-radius: 20px;
            width: 480px;
            margin: 50px auto;
            padding: 20px;
        }

        #drop-area.highlight {
            border-color: purple;
        }

        p {
            margin-top: 0;
        }

        .my-form {
            margin-bottom: 10px;
        }

        #gallery {
            margin-top: 10px;
        }

        #gallery img {
            width: 150px;
            margin-bottom: 10px;
            margin-right: 10px;
            vertical-align: middle;
        }

        .button {
            display: inline-block;
            padding: 10px;
            background: #ccc;
            cursor: pointer;
            border-radius: 5px;
            border: 1px solid #ccc;
        }

        .button:hover {
            background: #ddd;
        }

        #fileElem {
            display: none;
        }