nav {
    margin: 0 33% 2vh 33%;
    background-image: linear-gradient(#182738, #284a77);
    width: 34%;
    height: 25vh;
    padding: 5vw;
    color: white;
    box-sizing: border-box;
    position: fixed;
    top: 0;
    transition: cubic-bezier(.6,0,.4,1) 0.7s;
    z-index: 10;
}

nav::after {
    height: 2vh;
    width: 100%;
    background-image: linear-gradient(#00000050, transparent);
    content: '';
    position: absolute;
    top: 25vh;
    left: 0;
}


#menu {
    filter: invert(1);
    opacity: 0.25;
    position: absolute;
    left: 50%;
    transform: translate(-50%);
    transition: 0.3s;
    cursor: pointer;
}

#menu:hover {
    opacity: 0.75;
}

#quiz, #gra, #manhunt {
    position: absolute;
    filter: invert(1);
    transform: translate(-50%, -50%);
    transition: 0.3s;
    height: 10vh;
    top: 50%;
    left: 50%;
    cursor: pointer;
}

#quiz:hover, #gra:hover, #manhunt:hover {
    opacity: 0.5;
}

#quiz::selection, #gra::selection, #manhunt::selection {
    background-color: transparent;
    color: transparent;
}

#options {
    position: absolute;
    top: 2vh;
    left: 0;
    width: 100%;
    height: 15vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.zdj {
    position: relative;
    background-color: aqua;
    width: 15vh;
    height: 15vh;
    border-radius: 30%;
    margin: 0 5% 0 5%;
    box-shadow: rgba(0, 0, 0, 0.5) 5px 5px 10px;
    background-image: linear-gradient(rgb(61, 114, 114), darkslategrey);
}

#quizletzdj {
    background-image: linear-gradient(225deg, rgb(87, 151, 151), rgb(30, 59, 59));
}

#grazdj  {
    background-image: linear-gradient(225deg, rgb(173, 57, 226), rgb(77, 41, 143));
}

#manhuntzdj {
    background-image: linear-gradient(225deg, #365f96, #112336);
}

.hidden {
    top: -18vh;
}

#menu {
    height: 2.5vh;
    top: 20.25vh;
}


@media all and (max-width:500px) {
    nav {
        width: 100vw;
        margin: 0;
    }
}