body {
    margin: 0px;
    padding: 0px;
    color: black;
    font-size: 14px;
    font-family: 'PTSans','Trebuchet MS','Helvetica Neue','Nimbus Sans','Helvetica','Arial',sans-serif;
    font-weight: 500;
    overflow-x: hidden;
    background: url(./background.jpg) no-repeat fixed center top;
    background-size: cover;
}

strong.d-flex.justify-content-center {
text-align: center;
}