.container{
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  padding: 10px;
}
.head{
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  padding: 10px 10px 20px 10px;
}
.pg {
  width: 100%;
  height: 200px;
}
.pg1 {
  width: 100%;
  height: 119px;
}
.pg2,
.pg3,
.pg4{
  width: 100%;
  height: 640px;
  margin-bottom: 25px;
}
.pg img {
  width: 100%;
  height: 100%;
}