<div class="l d"></div>
<div class="r d"></div>
<div class="c"></div>
<style>
body {
background: #0B2429;
margin: 0;
display: flex;
align-items: center;
justify-content:center;
}
div {
position: absolute;
transform: rotate(45deg);
}
.c {
background: #F3AC3C;
top: 135px;
width: 100px;
height: 100px;
}
.l {
background: #998235;
left: 129;
transform: skewY(-45deg);
}
.r {
background: #1A4341;
right: 129;
transform: skewY(45deg);
}
.d {
width: 71px;
height: 71px;
top: 79;
}
</style>