@import url("https://fonts.googleapis.com/css2?family=Oswald:wght@300&display=swap");

html {
background-image: url(/images/bg-b.png);
background-position: center;
background-size: cover;
background-repeat: no-repeat;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
min-height: 100%;
}

body {
background-color: transparent;
font-family: "Oswald";
}

nav {
opacity: 0.7;
}

img:hover {
opacity: 0.5;
}

#back-to-top {
background-color: #343a40;
opacity: 0.7;
color: #fff;
border: 0px;
font-size: 24pt;
vertical-align: middle;
cursor: pointer;
position: fixed;
bottom: 50px;
right: 20px;
display: none;
}