.a4land {
  width: 297mm;
  height: 210mm;
  margin: 20px auto;
  padding: 15mm;
  box-shadow: 0 0  10px rgba(0, 0, 0, 0.1);
  box-sizing: border-box;
  display:float;
  justify-content: left;
  align-items: left;
  min-height: 100vh;
  margin: 0;
  font-family: helvetica, verdana;
  h1, p {
    margin: 0 0 10px;
  }
}

.a42land {
  width: 297mm;
  margin-left: 20px;
  margin-top: 0;
  padding-top: 0;
  display:float;
  justify-content: center;
  align-items: center;
  margin:0 auto;
  font-family: helvetica;
  h1, p {
    margin: 0 0 10px;
  }
}

.a42c {
  position:sticky;
  width:297mm;
  margin-top:0;
  padding:0;
/*  border:1px solid red;*/
}

.a42d {
  position:relative;
  overflow-y:auto;
  height:380px;
  margin-top:10px;
/*  border:1px solid blue;*/
  width:1122px;
}