body {
    font-family: "Raleway", sans-serif; 
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

#background-div {
    background-image: url("images/skyippee.jpg");
    background-repeat: no-repeat;
    background-size: 100% auto;
    position: fixed;
    z-index: -1;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
}

.spacer {
    margin-top: 150px;
}
h1, h2, h3, h4, h5, h6 {
    font-family: "Montserrat", sans-serif;
}

.content {
    width: 60vw;
    padding: 30px;
    border-radius: 10px;
    margin: 20px auto;
    box-shadow: 0 5px 10px lightgrey;

    background: rgba( 255, 255, 255, 0.25 );
    box-shadow: 0 8px 32px 0 rgba( 31, 38, 135, 0.37 );
    backdrop-filter: blur( 10px );
    -webkit-backdrop-filter: blur( 10px );
    border-radius: 10px;
    border: 1px solid rgba( 255, 255, 255, 0.18 );
}

img {
    width: calc(60vw + 60px);
    margin: auto;
    display: block;
    border-radius: 30px;
}

.content h1, h2 {
    text-align: center;
}

.content p {
    text-indent: 40px;
    padding: 20px 75px;
    line-height: 30px;
    font-size: 18px;
}

#footer {
    background: rgb(50, 50, 50);
    bottom: -20px;
    
    position: relative; 
    color: white;
    padding-top: 50px;
    padding-bottom: 50px;
}

#footer * {
    text-align: center;
    display: block;
    font-size: 1.5em;
    margin: 10px 0;
}

#header {
    height: 90px;
    width: 100vw;
    background: rgb(84, 140, 153);
    top: 0;
    position: absolute;
    color: white;
}

#header h1 {
    font-family: "Playwrite HU", sans-serif;
    top: 5px;
    padding-left: 30px;
    padding-right: 20px;
    font-size: 2.5em;
    position: relative;
    display: inline;
    cursor: pointer;
}

#header a {
    text-decoration: none;
    color: white;
    margin: 0 20px;
}

.hide {
    display: none;
}

.show {
    display: block;
}

#p5 {
    margin: auto;
    display: block;
    margin-bottom: 30px;
}

.quiz-card {
    margin: auto;
    box-shadow: 0 5px 10px lightgrey;
    width: 800px;
    padding: 30px;
    border-radius: 10px;
    padding-bottom: 80px;
    background: white;
    margin-top: 50px;
}

button {
    border: none;
    padding: 10px 20px;
    margin: 10px;
    color: white;
    font-size: 1em;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 0 3px 3px lightgrey;
    transition: 100ms;
    /* background: dodgerblue; */
}

.quiz-card button:active {
    transform: translateY(2px);
    box-shadow: 0 1px 3px lightgrey;
}

.quiz-back {
    float: left;
    background: rgb(223, 150, 25);
}

.quiz-next {
    float: right;
    background: seagreen;
}

.quiz-disabled {
    background: grey !important;
}

#score-bar {
    width: 1000px;
    height: 50px;
    margin: auto;
    display: block;
    background: rgb(225, 225, 225);
    overflow: hidden;
}

#score-progress {
    position: relative;
    top: 0;
    left: 0;
    height: 50px;
    width: 200px;
    color: white;
    font-size: 30px;
    padding-top: 5px;
    padding-left: 15px;
}