    color: gray;
            width: 100%;
            height: 100%;
            border: none;
            font-family: 'Open Sans', sans-serif;
            font-size: 16px;
        }

        .fa-minus-circle {
            color: red;
        }

        .fa-plus-circle {
            color: green;
        }

    </style>
</head>
<body>

<main>
    <article>
        <h1>TO-DO</h1>
        <div id="items"></div>
        <section>
            <input type="text" id="new-item" placeholder="add item">
            