html,
body {
    width: 100%;
    background: transparent;
}

#textWidget {
    width: 100%;
    padding: 16px;
    white-space: pre-wrap;
    line-height: 1.7;
    word-break: break-word;
    background: #000000;
    border-radius: 16px;
    box-sizing: border-box;
}