<div class="bar"></div>
<div class="mid"></div>
<div class="bar right"></div>
<style>
body {
background: #6592cf;
display: flex;
justify-content: center;
}
.bar {
background: #293d7e;
width: 39px;
height: 85px;
position: absolute;
left: 128px;
top: 50px;
transform: skew(51.5deg);
box-shadow: -63px 50px #293d7e, -126px 100px #293d7e;
}
.right {
transform: skew(-51.5deg);
left: 233px;
box-shadow: 63px 50px #293d7e, 126px 100px #293d7e;
}
.mid {
position: absolute;
border-top: 20px solid #293d7e;
border-left: 25px solid transparent;
border-right: 25px solid transparent;
top: 130px;
filter: drop-shadow(0 50px #293d7e) drop-shadow(0 50px #293d7e);
}
</style>