body {
    width: 100vw;
    height: 100vh;
}

a {
    text-decoration: none;
    color: navy;
    font-size: 3vw;
    filter: blur(2px);
}

a:hover {
    text-decoration: underline;
    filter: none;
}

h1 {
    font-size: 5vw;
    color: lightblue;
    filter: blur(2px);
}

h1 a {
    font-size: 5vw;
    color: lightblue;
    filter: blur(2px);
}

h1:hover {
    filter: none;
}

h2 {
    font-size: 4vw;
    color: aqua;
}

h2 a {
    text-decoration: none;
    filter: none;
    color: aqua;
}

h2:hover {
    filter: none;
}

h2 a:hover {
    text-decoration: none;
    filter: blur(3px);
}

div {
    margin: 5vw;
}