#video {
    text-align: center;
    width: 100%;
}

#video video {
    width: 70%;
    margin-top: 12vh;
    margin-bottom: 3vh;
}

#about {
    background: lightgray;
    font-size: 1.5rem;
}

#about p {
    padding: 2% 4% 3%;
    font-size: 2rem;
    text-align: justify;
}

.topic {
    background: rgb(0, 0, 0);
    text-align: center;
    width: 100%;
}

.text {
    color: lightblue;
    font-size: 3rem;
    padding: 2%;
}

#wwd {
    padding: 2%;
    margin-left: 5%;
}

#wwd a {
    text-decoration: none;
    color: darkblue;
}

#wwd a h3 {
    padding: 2%;
    font-size: 2rem;
    text-align: center;
}

.wwd {
    margin: 0%;
    width: 15%;
    height: auto;
}

#tpc {
    background: black;
    text-align: center;
    width: 100%;
}

.oc {
    margin: 0% 1% 3%;
    width: 8%;
    height: auto;
}

#viewer {
    width: 70%;
    margin: 5%;
}

#form {
    margin: 5%;
    width: 90%;
    line-height: 2rem;
    font-size: 2rem;
    text-align: inherit;
}

@media screen and (max-width: 1024px) {
    .text {
        color: lightblue;
        font-size: 2.5rem;
        padding: 4%;
    }
    .wwd {
        margin: 0% 3%;
        width: 25%;
    }
}

@media screen and (max-width: 720px) {
    .text {
        color: lightblue;
        font-size: 2rem;
        padding: 3%;
    }
    .wwd {
        margin: 0% 5%;
        width: 35%;
    }
    .oc {
        margin: 0% 4% 4%;
        width: 13%;
    }
#about p {
        font-size: 1.4rem;
    }
    #video video {
        width: 80%;
    }
}

@media screen and (max-width: 500px) {
    #about p {
        font-size: 1rem;
    }
    #video video {
        width: 90%;
    }
}