body {
     font-family: Roboto Mono;
    margin: 0;
    background: url("fire.webp");
    background-position: center;
    /* Center the image */
    background-repeat: no-repeat;
    /* Do not repeat the image */
    background-size: cover;
    /*cover the whole page*/
   
}

main {
    height: 100vh;
    /* make the page 100% of the viewport */
}

.main-content {
    height: 100vh;
    /* make the page 100% of the viewport */
    
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}



/*
.header {
    font-family: Roboto Mono;
    color: gold;
    font-size: 20px;
    padding: 18px;
}
*/

/*
.about.html {
    color: gold;
}
*/

/*
.header a {
    color: red;
    font-size: 20px;
    text-decoration: none;
    padding-right: 30px;
}
*/


.back-button a {
    font-family: Roboto Mono;
    font-size: 2em;
    display: block;
    padding: 20px;
    text-decoration: none;
    color: gold;
}


.back-button {
    position: fixed;
    left: 0px;
    top: 0px;
    margin: 20px;
    border-radius: 100%;
    border:  5px;
    border: circle 5px black;
    background-color: red;
    transition: border .2s ease-in;
    z-index: 10;
}


.back-button a {
    transition: color .2s ease-in;

}

.back-button:hover {
    border:  5px;

}

.back-button a:hover {
    color: black;
}


.next-button a {
    font-family: Roboto Mono;
    font-size: 2em;
    display: block;
    padding: 20px;
    text-decoration: none;
    color: gold;


}

.next-button {
    position: fixed;
    right: 0px;
    top: 0px;
    margin: 20px;
    border-radius: 100%;
    border: circle 5px black;
    background-color: red;
    transition: border .2s ease-in;

}

.next-button a {
    transition: color .2s ease-in;

}

.next-button:hover {
    background-color: 
    border: dotted 5px ;

}

.next-button a:hover {
    color: black;
}



.footer {
    font-family: Roboto Mono; 
    position: fixed;
    padding-left: 18px;
    bottom: 18px;
    width: 100%;
    font-size: 12px;
    color: gold;
}








.balls {
    font-size: 8em;
    display: flex;
    color: white;
    z-index: 1;

}

.moving:hover {
    z-index: 100;
}

.falling {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background-color: orangered;
    position: fixed;
    z-index: 2;
    animation-name: danger;

    animation-timing-function: linear;
    animation-iteration-count: infinite;

}

#one {
    animation-duration: 4s;
    right: 200;
    top: 0;
    overflow: none;

}

#two {
    animation-duration: 10s;
    left: 20px;
    top: 0;
    overflow: none;
}

#three {
    animation-duration: 20s;
    right: 50px;
    top: 0;
    overflow: none;
}

#four {
    animation-duration: 15s;
    left: 300px;
    top: 0;
    overflow: none;
}



@keyframes danger {
    0% {
        transform: translateY(-20vh);
    }

    100% {
        transform: translateY(110vh);
    }
}