.tenyears {
    width: 85%;
    margin-left: auto;
    margin-right: auto;

    background-color: lightsteelblue;
    
}

.tenyears h2{

    margin-top: 0em;
    margin-bottom: 0.5em;

    text-align: left;

    font: 1.4em sans-serif;
}

.baustelle {    
    background-color: white;
    height:30vh;
    
     background-image:  url(../images/underconstr.png);
     
     background-repeat: no-repeat;
     background-attachment: fixed;
     background-position: top center;
     background-size: auto 30vh ;
     -webkit-background-size: auto 30vh ;
     -moz-background-size: auto 30vh ;
     -o-background-size: auto 30vh ;
     position: relative;
     background-attachment: scroll;
    
     margin-top: 2em;
 } 

 .imgstrp1 {    
    background-color: white;
    min-height: 30vh;
    max-height:30vh;
    
     background-image:  url(../images/imgstrp1.jpg);
     
     background-repeat: no-repeat;
     background-attachment: fixed;
     background-position: top center;
     background-size: auto 30vh ;
     -webkit-background-size: auto 30vh ;
     -moz-background-size: auto 30vh ;
     -o-background-size: auto 30vh ;
     position: relative;
     background-attachment: scroll;
    
     margin-top: 2em;
     margin-bottom: 0em;
 }