@keyframes animacja {
    from {opacity: 0%; margin-top: 60px;}
    to {opacity: 100%; margin-top: 80px;}
}
@keyframes animacja__text {
    from {opacity: 0%; margin-top: 60px;}
    to {opacity: 100%; margin-top: 26px;}
}
body{
    background-size: cover;
    background-image: url(SM_Twardogóra_ratusz_\(2\).jpg);
}
.box{
    animation-name: animacja;
    animation-duration: 1.5s;
    animation-timing-function: ease-out;
    margin: auto;
    width: 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    font-size: 20px;
    /*border: 1px solid black;*/
    padding: 20px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.8);
    font-family: Arial, Helvetica, sans-serif;
    margin-top: 80px;
}
.text{
    animation-name: animacja__text;
    animation-duration: 1.5s;
    animation-timing-function: ease-out;
}
a:visited{
    color: darkblue;
}
a{
    text-decoration: none;
}