ght: 500px;
  background-image: 
    repeating-linear-gradient(to bottom, 
      white 0px, 
      white 5px, 
      rgba(0,0,0,0.075) 5px, 
      rgba(0,0,0,0.075) 10px);
}
div > div {
  border: 1px solid;
  flex: 1 0 auto;
  background-color: rgb(208,208,208);
  letter-spacing: 2px;
}
.stretch {
  flex: 0 1 0;
}
.k {
  flex: 1 0 95%;
}
p {
  margin: 0 -20px 40px;
}
.stretch {
  align-self: stretch;
  width: 1px; 
  margin-left: -2px;
  background-color: transparent;
  border-color: transparent;
}
.stretch