a {
    color: white;
    font-weight: bold;
    background-color: rgba(255, 0, 0, 0.5);
    transition: 0.3s;
    margin: 0.05em;
}
a:hover {
    background-color: rgba(0, 0, 0, 0.5);
}

#linkbox {
    font-size: calc(3vw + 3vh + 2vmin);
    display: flex;
    flex-direction: column;
    padding-bottom: 0.2em;
    padding-top: 0.2em;

    position: absolute;
    top: 30%;
    left: 50%;
    -moz-transform: translateX(-50%) translateY(-30%);
    -webkit-transform: translateX(-50%) translateY(-30%);
    transform: translateX(-50%) translateY(-30%);
}

@media (max-width: 1000px) {
    #linkbox {
        width: 60%;
    }
}

@media (max-width: 750px) {
    #linkbox {
        width: 70%;
    }
}

@media (max-width: 600px) {
    #linkbox {
        width: 90%;
    }
}