<div class="c"></div>
<div class="l"></div>
<div class="r"></div>
<style>
body {
background: #0B2429;
margin: 0;
}
div {
position: absolute;
}
.c {
width: 100px;
height: 100px;
background: #F3AC3C;
transform: rotate(45deg);
bottom: 65px;
left: 150px;
}
.r, .l {
width: 70px;
height: 70px;
background: #1A4341;
left: 200px;
bottom: 150px;
transform: skewY(45deg);
}
.l {
background: #998235;
transform: skewY(-45deg);
left: auto;
right: 200px;
}
</style>