style.css

@import url('https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,500;1,900&display=swap');

*   {
    margin: 0;
    padding: 0;
}

body    {
    background-color: #FFCB05;
}

.heading  {
    font-size: 5vh;
    text-align: center;
    margin: 3vh;
    font-family: 'Barlow', sans-serif;
}

.head-container {
    border-bottom: 5px solid #0065BC;
    width: 100%;
}

.container  {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.form  {
    background-color: #0065BC;
    border-radius: 0vh 0vh 2.2vh 2.2vh;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    flex-direction: column;
    height: 10vh;
    width: 50vw;
    padding: 1vh;
}

#text   {
    width: 35vw;
    height: 10vw;
    margin-bottom: 1vh;
    text-align: center;
    font-family: 'Barlow';
    font-size: 2.2vh;
    text-decoration: solid;
    color: #E9530D;
    border-radius: 1vw;
}

#btn    {
    height: 10vw;
    width: 20vw;
    background-color: #E9530D;
    color: #FFCB05;
    font-family: "Barlow";
    font-size: 1.8vh;
    border-radius: 1vw;
}

.output {
    height: 70vh;
    width: 100vmin;
    margin-top: 0.5vh;
    margin-bottom: 0.5vh;
}

video   {
    height: 70vh;
    width: 100vmin;
    margin-top: 0.5vh;
    margin-bottom: 0.5vh;
    visibility: hidden;
}

footer  {
    background-color: #0065BC;
    font-family: 'Barlow';
    display: flex;
    justify-content: center;
    color: white;
    position: sticky;
}

a   {
    color: white;
}