:root{

    --blur:0px;
    --brightness:100%;
    --grayscale:0%;

}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color:gray;
}


.slider-container {
    margin-top: 10px;
}


h1
{
    margin-left: auto;
    margin-right: auto;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    text-align: center;
    font-size: 50px;
    color: #fff;


}

img {
    margin-top: 0px;
    filter:brightness(var(--brightness))  blur(var(--blur)) grayscale(var(--grayscale));
    transition: filter 0s ease-in-out;

}


.center{
    display: block;
    margin-left: auto;
    margin-right: auto;
    width:50%;
}

.controls{
    margin-bottom: 50px;
    margin-left: 515px;
}

input {
    width: 100px;
}

.centertext{
    display: block;
    margin-top: 0px;
    margin-left: 515px;
    width:50%;
}