@media only screen and (max-width: 900px) {
  .vorschau {
width: 49%;

}
}

.thumb {
max-width: 550px;
}


#thumbBox{ /*Outermost DIV for thumbnail viewer*/
position: absolute;
left: 0;
top: 0;
width: auto;
padding: 10px;
padding-bottom: 0;
background: #3CC;
visibility: hidden;
z-index: 10;
line-height: 2.4 em;
font-size:12px;
cursor: hand;
cursor: pointer;
}

#thumbBox .footerbar{ /*Footer DIV of thumbbox that contains "close" link */
position: absolute;
line-height: 1.1em;
color: black;
padding-right: 0.5em;
padding-top: 0.5em;
top: 0;
right: 0.5em;
text-align: right;
}


#thumbBox #thumbImage{ /*DIV within thumbbox that holds the enlarged image */
background-color:  #3CC;
padding-bottom: 1em;
padding-top: 1em;
}

#thumbLoading{ /*DIV for showing "loading" status while thumbbox is being generated*/
position: absolute;
visibility: hidden;
border: 1px solid #3CC;
background-color: #3CC
padding: 5px;
z-index: 5;
}