.jahr {
    display: block;
}

.klassen a {
    margin: 0 auto 20px auto;
    padding: 20px 0;
    background: url(https://abload.de/img/dasding0242joa.png);
    color: #a6873d;
    size: 32px;
    font-weight: normal;
    line-height: 35px;
    text-align: center;
    text-transform: lowercase;
}

/* Style the buttons that are used to open and close the accordion panel */
.jahrx {
margin:auto auto;
  width: 850px;
  transition: 0.4s;
}

/* Style the accordion panel. Note: hidden by default */
.ausklapp {
	width: 850px;
	max-height: 0;
	overflow: hidden;
	transition: max-height 0.2s ease-out;
}