body {
  margin: 0;
  padding: 20px;
}

.box {
  display:flex;
  flex-direction: row;
  justify-content: space-between;
  margin-bottom: 40px;
}

.text {
}

h3 {
  font-size: 27px;
  margin: 0;
}

.pict {
  width: 30%;
  margin-left: 3%;
}

.pict img {
  width: 100%;
  height:auto;
}

.box:nth-child(even) {
  flex-direction: row-reverse;
}
.box:nth-child(even) .text {
  text-align: right;
}
.box:nth-child(even) .pict {
  margin-left: 0;
  margin-right: 3%;
}

@media (max-width:768px) {
  .box {
    flex-direction: column;
  }
  .box:nth-child(even) {
    flex-direction: column;
  }
  .text {
    text-align: center;
  }
  .box:nth-child(even) .text {
    text-align: center;
  }
  .pict {
    width:100%;
    margin-left: 0;
    text-align: center;
  }
  .box:nth-child(even) .pict {
    margin-left: 0;
    margin-right: 0%;
  }
  .pict img {
    width:50%;
    height:auto;
  }
}

/* footer */
footer{
  font: 18px/1.6 Arial, Helvetica, sans-serif;
  padding: 20px;
  margin-top: 20px;
  color: #35424a;
  background-color: #0000;
  text-align: center;
  width: 80%;
  margin: auto;
  overflow: hidden;
}