/*==========================
 start the global ========*/
* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

/*===========================================
 start the secion of develoopers ===========*/
.main {
  width: 100%;
  background-image: url(../img/developers.jpg);
  background-size: cover;
  height: 300px;
}
.dev {
  margin-top: 0;
  background-image: url(../img/pagebg.jpg);
  background-size: cover;
}