* {
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    width: 100vw;
    height: 100vh;
    text-align: center;
}

.link-container {
    width: 80%;
    max-width: 500px;
    min-width: 300px;
    margin: 20px auto;
}

a {
    color: #318aaa;
    text-decoration: none;
}

.link-container a {
    width: 90%;    
    padding: 10px;
    margin: 20px;
    font-size: 1.2em;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    border: .5px solid rgba(0, 0, 0, 0.2);
    display: block;
    color: #000;
    user-select: none;
    border-radius: 1px;
    transition: color 0.2s;
}

.link-container a:active {
    box-shadow: none;
}

a:hover {
    color: #318aaa;
}

a:visited {
    color: purple;
}

footer {
    color: gray;
    font-size: .8em;
    width: 80%;
    margin: 0 auto;
}

@media only screen and (min-width: 700px) {
    .link-container {
        border: 2px solid gray;
        width: 650px;
        border-radius: 5px;
    }
    footer {
        width: 690px;
    }
}