index.css

.bg {
    background-image: url("slike/background.png");
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 100vh;
}
body{
    font-family: 'Gelasio', serif;
    font-size: 24px;
    position: relative;
}
h1,h2{
    color:rgb(26, 26, 62);
}
nav{
    background-color: rgb(26, 26, 62);
}
.circle{
    background-color: rgb(26, 26, 62);
    color: white;
}
.circle:hover{
    color:rgb(26, 26, 62);
    background-color: white;
}
.footer{
    background-color: rgb(26, 26, 62);
}
.white{
    background-color: white;
}
#copyright{
    color: white;
    font-size: 16px;
}
.prog{
    border: 1px solid;
    border-color:rgb(26, 26, 62);
}
.dpt{
    padding-top: 120px;
}
@media only screen and (max-width: 600px) {
    body, h4 {
      font-size: 16px;
    }
    #copyright{
        font-size: 12px;
    }
    .display-4{
        font-size: 32px;
    }
    .display-3{
        font-size: 40px;
    }
    .dpt{
        padding-top: 60px;
    }
  }