html {
/*    background-image: url(Fleester_Hoff_hell.jpg);*/
    background-position: 50% 50%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    background-color: lightsteelblue;
}

/*article {
    background-image: rgba(255,255,255,0.9);
}*/

<style>

.song {clear:left; margin:1 0;}
.song input {margin: 0 1em .5em 0;float:left;padding:0;}
.song p {margin:0 0 1.5em 0;}
.song:after {
	content : ".";
	display : block;
	height : 0;
	clear : left;
	visibility : hidden;
}

audio{ margin:0;min-width:0}

@media only screen and (min-device-width:768px) {
	audio{max-width:75%;}
}

@media only screen 
  and (min-device-width: 320px) 
  and (max-device-width: 480px)
  and (-webkit-min-device-pixel-ratio: 2)
  and (orientation: portrait) {
	audio{max-width:10em;}
}

</style>
a:link {text-decoration: none; color:#494949}
a:visited {text-decoration: none; color:#494949}
a:hover {text-decoration: none; background-color: #efefef}
a:active {text-decoration: none; background-color: #efefef}

#inhalt{width: 900px; margin-left: auto; margin-right: auto; font-family: "Trebuchet MS", Helvetica, sans-serif; letter-spacing:inherit}

#logo {text-align: center; font-size: 150%; color: #4b4b4b; padding-top: 30px}

#Untertitel {text-align: center; font-size: 100%; color: #4b4b4b; padding-bottom: 10px}

#navigation {text-align: center; font-size: 60%; padding-bottom: 10px}

#text {text-align: left; font-size: 80%; letter-spacing: normal; margin: 20}

#Start {text-align: center; font-size: 80%; letter-spacing: normal; color: #494949; margin: 10}

.links {float: left; margin-right: 10px}

#footer {text-align: center;}

.rahmen {border-style: solid;
         border-color: #000088;
         border-width: 0px;
         padding: 2px}

/* Kontakt **************************/

form input, textarea {
    font-size: 15px;
    margin-left: 175px;
    margin-top: 10px; margin-bottom: 5px;
    border-radius: 2px;
    border: 2px solid;
    border-color: #494949; 
}

form input {width: 550px; height: 30px;}

form textarea {width: 550px; height: 200px; resize: none;}

.input_text {color: #494949; padding-left: 10px;}

.button {background-color: #f0f0f0; color: #494949}

.button:hover {background-color: #494949; color: #f0f0f0;}