* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body{
    background-color: rgb(104, 108, 137);
    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 rgb(169, 16, 16);
    border-radius: 5px;
    background-color: rgba(red, green, blue, alpha);
    
    width: 260px;
    position: relative;
    margin: 0 auto;
}

input, textarea {
    display:block;
    margin-bottom: 10px;
    width: 200px;
    padding: 2px;
    border: 2px dashed rgb(23, 207, 23);
    border-radius: 5px;
}

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