.felder{
float: none;
list-style-type: none;  
text-align: left;
margin: 0px;
}

.felder li{
float: left;
width: 200px;
margin: 0px 20px;
margin-bottom: 50px;
}

.feldtitel{
width: 100%;  
height: 50px;
border: none;
}
.feldbild{
width: 200px;  
height: 300px;
border: none;
}