font-family: 'Roboto', sans-serif;
body {font-size:1.1em;min-height: 75rem}

card-body {margin:0 20px;border:1px solid red}
h2 {color:black;font: 'Roboto-Bold', sans-serif;font-size:25px;}
p, td {color:black;font-size:16px;}
nav {background:blue}
nav button {margin:0 10px;background:#ffc107}
nnav a:hover {color:#fff}
footer p {padding:12px 0 0 18px}
iframe {width:100%}
button {background:#ffc107}
strong {font-size:20px;font-weight:700}


.nachoben {background:#ffc107;box-shadow:0 2px 2px rgba(0,0,0,0.5);position:fixed;left: 50%;bottom:8px;font-weight:bold;font-size:2em;
width:56px; height:56px;text-align:center;border-radius:50%;color:#212121;line-height:56px;margin-left:-30px;z-index:10}

@media screen and (min-width: 900px) {
  .carousel-inner {max-width:600px;margin: 0 auto}
}

@font-face {
font-family: Roboto;
src: url(http://www.usedomnetz.de/Roboto-Regular.ttf);
}