.contact_form {
   position: relative;
   top: 0px;
   left: 0px;
}

.contact_form .label {
   position: absolute;
   width: 150px;
}

.contact_form .input {
   position: relative;
   left: 150px;
   width: 150px;
}

.contact_form .label_input {
   margin-bottom: 2px;
}

.reageren {
   font-weight: bold;
   margin-bottom: 10px;
}

#error {
   color: red;
}