/* PAGE BACKGROUND */

body{
    margin:0;
    font-family:Arial;
    background-image:url("background.jpg");
    background-size:cover;
    background-position:center;
    color:white;
}

/* HEADER */

header{
    background-color:royalblue;
    color:yellow;
    text-align:center;
    padding:15px;
}

.logo{
    width:100px;
}

/* NAVIGATION */

nav{
    background-color:#0033cc;
    text-align:center;
    padding:10px;
}

nav a{
    color:yellow;
    margin:15px;
    text-decoration:none;
    font-weight:bold;
}

nav a:hover{
    color:white;
}

/* HERO SECTION */

.hero{
    height:300px;
    display:flex;
    justify-content:center;
    align-items:center;
    text-align:center;
}

.hero-text{
    background-color:rgba(0,0,0,0.6);
    padding:30px;
    border-radius:10px;
}

/* CONTENT SECTIONS */

.content-box{
    background-color:rgba(0,0,0,0.7);
    margin:30px;
    padding:25px;
    border-radius:10px;
}
.slideshow{
    width:700px;
    margin:auto;
    position:relative;
}

.slide{
    display:none;
    position:relative;
}

.slides{
    width:100%;
    height:400px;
    object-fit:cover;
}

.caption{
    position:absolute;
    bottom:0;
    background:rgba(0,0,0,0.6);
    color:white;
    width:100%;
    padding:10px;
    text-align:center;
    font-size:18px;
}

/* IMAGES */

img{
    width:200px;
    margin:10px;
    border-radius:8px;
}
img:hover {
  transform: scaleX(-1);
}



/* AUDIO PLAYER */

audio{
    margin:15px 0;
}

/* FOOTER */





footer {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  background-color: royalblue;
  color: yellow;
  text-align: center;
}

<div class="footer">
  <p>Footer</p>
</div>