Remove main.css and add square symbols

    <link rel="stylesheet" href="main.css">
        <li class="balance-main">Balance:&nbsp;<span
id="balance">0.000</span></li>
        <li class="address-main">Address:<div
id="address">www.#</div></li>
        <li class="qrcode-main"> <div class="qr-expand">QR
code</div><div id="qrcode"></div></li>
        <li class="threshold-main">Maximum Threshold: