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HTML 

              
                <main class="cover">
  <h1 class="title">SWB</h1>
  <span class="year">1950</span>
  <p>Loremipsum</p>
  <p>Zürich</p>
  <p>Ausstellung</p>
  <div aria-hidden="true" class="top"></div>
  <div aria-hidden="true" class="bottom">
  </div>
  <div aria-hidden="true" class="divider"></div>
</main>
!

CSS 

              
                $transparent: rgba(255, 255, 255, 0);
$blue: #afc7bf;
$black: #222;
$stripe-w: .35vmin;

.cover {
  border: 1em solid #fff;
  overflow: hidden;
  width: 80vmin;
  height: 115vmin;
  margin: auto;
  background-color: #e7dac9;
  display: grid; 
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 1fr 4fr repeat(2, 1fr) 2fr 3fr;
  font-family: "Oswald", sans-serif;
  color: $black;
  

  // blue triangle
  &::before {
    content: "";
    grid-column: 1 / -1;
    grid-row: 1 / -1;
    background-color: $blue;
    clip-path: polygon(100% 100%, 0% 0%, 100% 50%);
  }

  // blue stripes over black
  &::after {
    content: "";
    grid-column: 1 / -1;
    grid-row: 1 / 4;
    clip-path: polygon(0% 0%, 50% 100%, 100% 100%, 0% 0%);
    background-image: repeating-linear-gradient(
      0deg,
      $blue,
      $blue $stripe-w,
      $transparent $stripe-w,
      $transparent $stripe-w * 2
    );
  }
}

// solid black triangle
.top {
  grid-column: 1 / span 2;
  grid-row: 1 / span 3;
  clip-path: polygon(0% 100%, 100% 0%, 50% 100%);
  background-color: $black;
}

// gold triangle
.bottom {
  position: relative;
  grid-row: 4 / -1;
  grid-column: 1 / -1;
  background-color: #ffe669;
  mix-blend-mode: multiply;
  clip-path: polygon(0% 0%, 100% 0%, 0% 100%);

  // black stripes
  &::before {
    content: "";
    display: block;
    width: 50%;
    height: 100%;
    background-image: repeating-linear-gradient(
      0deg,
      $black,
      $black $stripe-w,
      $transparent $stripe-w,
      $transparent $stripe-w * 2
    );
    clip-path: polygon(0% 0%, 50% 0%, 0% 97%);
  }
}

// vertical line in the middle
.divider {
  z-index: 1;
  position: relative;
  width: 0.2vmin;
  grid-column: 3 / span 2;
  grid-row: 1 / -1;
  background-color: $black;

//   line going from the middle-bottom to the top right
  &::after {
    content: "";
    position: relative;
    display: block;
    height: 110%;
    width: 100%;
    bottom: 10%;
    background-color: inherit;
    transform: rotate(19.5deg);
    transform-origin: bottom left;
  }
}

.title {
  margin: 0 -2rem 0 0;
  writing-mode: vertical-rl;
  transform: rotate(180deg) scaleX(.65);
  grid-column: 3 / span 2;
  justify-self: center;
  grid-row: 2 / span 1;
  align-self: start;
  letter-spacing: .1em;
  font-size: 12vmin;
}

.year {
  grid-column: 2 / span 1;
  grid-row: 2 / span 1;
  align-self: start;
  font-size: .7rem;
  z-index: 1;
}

p {
  z-index: 1;
  margin: 0;
  grid-row: 5 / span 1;
  align-self: center;
  font-size: 0.8rem;

  &:first-of-type {
    grid-column: 2 / span 1;
  }
  
  &:nth-of-type(2) {
    margin-left: .5em;
    grid-column: 3 / span 1;
  }
  
  &:nth-of-type(3) {
    justify-self: start;
    grid-column: 4 / span 1;
    text-align: center;
    text-transform: uppercase;
  }
}

// basic page styles

* {
  box-sizing: border-box;
}

html {
  height: 100%;
  font-size: calc(14px * .5vmin);
}

body {
  display: flex;
  height: 100%;
  min-height: 100vh;
  background-color: lighten($blue, 10%);
}

@media screen and (min-midth: 32em), screen and (min-height: 30em) {
  body {
    margin: 1.5rem;
    min-height: 115vh;
  }
}
!

JS 

              
                // view at full size: https://codepen.io/meowwwls/full/XEKzmP/

// original design: https://www.designspiration.net/save/1055701249814/

// inspired by all of Jen Simmons' amazing replications: http://labs.jensimmons.com/
!
999px

Console