.alert {
    position:absolute;
    top:5%;
    left:10%;
    width:80%;
    margin-left:auto;
}
.header > .navbar {
    background: #000000;
    box-shadow: none;
    border-radius: 0;
    /* padding-top: calc(env(safe-area-inset-top) + var(--bs-navbar-padding-y)); */
}