nav {
    position: fixed;
    bottom: 0%;
    background-color: lightgray;
    width: 100%;
    height: 5%;
    padding: 25px;
}

.nav-sec {
    position: relative;
    width: 20%;
    height: 100%;
    float: left;
}

.nav-sec p {
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 200%;
}

.nav-sec a {
    color: black;
    text-decoration: none;
}