* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

#IPAddressInput, #num {
    margin: 5px;
    padding: 10px;
    background: red;
    border: none;
}

#IPAddressInput::placeholder, #num::placeholder {
    color: black;
}

video, img {
    margin: 5px;
    background: black;
    width: 100%;
    aspect-ratio: 16/9;
    max-width: 460px;
    border: 3px solid black;
}

img {
    border: none;
}

#start, #ip, .fullscreenbtn, #stop {
    cursor: pointer;
    margin-top: 10px;
    padding: 10px;
    background: red;
    color: black;
    border: none;
    border-radius: 5px;
}

.fullscreenbtn:hover, #start:hover, #ip:hover, #stop:hover {
    background: rgb(207, 0, 0);
}