@import url(https://fonts.googleapis.com/css?family=Comfortaa);
  body{
  height:100%;
  }
  #img2 {
  width: 100%;
  height: auto;
  }
.column3 {
    float: left;
    width: 33.3%;
    height: 320px;
    font-family: Comfortaa;
  }

  .column3 h2{
    font-size: 18px;
    text-align: center;
    font-family: Comfortaa,Arial,Sans-serif
  }
/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}

.ctrabajamos {
    padding-top: 30px;
    height: 810px;
    text-align: center;
    color: #fff;
    background: url(/imagenesD/05_nuestrasmarcas.jpg) center no-repeat;
    background-size: cover;
    font-family: Comfortaa;
}
.ctrabajamos h2 {
    margin-top: 450px;
    font-size: 18px;
    text-align: center;
    font-family: Comfortaa,Arial,Sans-serif
}
.ctrabajamos h3 {
    font-size: 24px;
    text-align: center;
    font-family: Comfortaa,Arial,Sans-serif
}