<div class="circle t l"></div>
<div class="circle t r"></div>
<div class="circle b c flip-y"></div>
<style>
body {
background: #6592CF;
}
.circle {
position: absolute;
width: 120px;
height: 60px;
box-sizing: border-box;
border: 20px solid #060F55;
border-bottom: 0;
border-top-left-radius: 60px;
border-top-right-radius: 60px;
}
.t { top: 40px }
.l { left: 40px }
.r { right: 40px }
.b { bottom: 40px }
.c { left: 140px }
.flip-y { transform: scaleY(-1) }
</style>