nav {
  padding: 0.825rem 0;
}
#first-block, #second-block, #third-block, #fourth-block {
    padding-top: 4.5rem;
    padding-right: 0;
    padding-left: 0;
}
#carousel {
  background:#f8f8f8;
}
#first-block {
    display: block;
    max-width: 80%;
    margin-left: 10%;
    margin-right: 10%;
}
#second-block {
    background-color: #ffffff;
}
#third-block {
    text-align: center;
    padding-top: 50px;
    max-width: 80%;
    margin-left: 10%;
    margin-right: 10%;
}
#fourth-block {
    background-color: #ffffff;
    padding-top: 10px;
    background-image: url(../img/briefpapier%20grijs-wit.png);
}
footer {
    background: #fff;
    padding-top: 3.5rem;
    padding-right: 0;
    padding-left: 0;
    padding-bottom: 3.5rem;
}
@media screen and (max-width: 768px) {
  .right {
  float:none;
  }
  nav {
    padding: 0;
  }
}