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console

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=, initial-scale=">
	<meta http-equiv="X-UA-Compatible" content="">
	<title></title>
</head>
<body>
	<div class="c1 c"></div>
	<div class="c2 c"></div>
	<div class="c3 c"></div>
	<div class="c4 c"></div>
	<div class="c5 c"></div>
</body>
</html>

.c {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background-color: pink;
    margin: 1em;
}

.c2 {
    height: 50px;
    border-radius: 50px 50px 0 0;
}

.c3 {
    border-radius: 100% 0 0 0;
}

.c4 {
    width: 100px;
    height: 100px;
    background-color: #FFB5BF;
    border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}

.c5 {
    width: 200px;
    height: 100px;
    background-color: #FFB5BF;
    border-radius: 100% 0 0 0;
}