<p>
<style>
* {
background: #40234B;
}
* * {
background: #A94EA4;
margin: 50px 85px;
clip-path: polygon(0 0, 100% 0, 50% 100%);
}
p {
margin: 0;
background: repeating-linear-gradient(120deg, #A94EA4, #A94EA4 16px, 0, #40234B 26px);
width: 210px;
height: 200px;
background-position: -1 -1;
}
</style>