#akkordeon:not(:target) .inhalt,
#akkordeon:not(:target) .hide,
#akkordeon:target .show {display: none;}
#akkordeon:target .inhalt {display: block;}
.inhalt {
box-shadow: inset 0px 0px 10px rgba(0,0,0,0.3);
padding: 20px 20px 1px;
margin: 0px 0px 10px;
}
.show,
.hide {
padding:10px;
background: red;
box-shadow:none!important;
color:#fff;
font-weight:bold;
}
.show:hover,
.hide:hover {
background: #ffb2b2;
color:#fff!important;
transition:0.2s all ease-in-out!important;
}

#teststation {
  width: 100%;
  height: 100%;
  border-radius: 10px;
}