<p a><p c b><p b><p c a><p c d><p a><p c a><p d>
<style>
body {
background: #1A4341;
margin: 80px 60px;
}
p {
float: left;
width: 50px;
height: 50px;
background: #998235;
margin: 10px;
}
[c] {
background: #F3AC3C;
}
[a] {
border-radius: 50%;
}
[b] {
border-radius: 50% 50% 0 0;
}
[d] {
border-radius: 0 0 50% 50%;
}
</style>
