* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body{
    background-color: purple;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 18px;
    padding: 10px;
    color: darkcyan;

}
video {
    width: 100%; 
}
h1 {
    text-align: center;
}
form {
    padding: 5px;
    border: 1px solid white;
    border-radius: 5px;
    background-color: rgba(0, 255, 255, 0.226);

    width: 260px;
    position: relative;
    margin: 0 auto;
}

input, textarea, select {
    display: block;
    margin-bottom: 10px;
    width: 200px;
    padding: 2px;
    border: 2px dashed green;
    border-radius: 5px;
}

#send {
    background-color: orange;
    cursor: pointer;
    border: 2px solid blue;
    color: chocolate;
}
#send:hover {
    background-color: chartreuse;
}