#img { 
    width: 250px;
    mix-blend-mode: multiply;
    height: 250px;
    background-size: contain;
    background-image: url("https://media1.tenor.com/m/LxTbPto0fdoAAAAC/bubu-rose-bubu-sweet.gif");
}


html {
    background-image: url("https://i.gifer.com/6OmH.gif");
    background-size: cover;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}


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


div {
    margin-left: auto;
    margin-right: auto;
}


div.mainContent {
    margin-top: 20%;
}

h1 {
    color: rgba(159, 60, 90, .9);
    box-shadow: 100px 5px 200px 20px red;

}

button {
    padding: 8px;
    width: 80px;
    border-radius: 5px;
    margin-top: 2%;
    border: 4px solid black;
}

#yes {
    background-color: salmon;
    color: whitesmoke;
    font-weight: bold;
    font-size: 16px;
}

#no {
    background-color: salmon;
    color: white;
    font-weight: bolder;
    font-size: 16px;
    transition: all 1s;
}


.button {
    position: relative;
}