<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
*{
box-sizing: border-box;
}
body{
background-color: #837F83;
}
.btn{
display: flex;
width: 300px;
height: 50px;
border: rgb(255, 0, 0) 2px solid;
}
.element{
width: 46px;
height: 46px;
border: white 2px solid;
border-radius: 30px;
background-color: #fff;
justify-content: center;
}
</style>
</head>
<body>
<div class="btn">
<div class="element">
</div>
</div>
</body>
</html>
Простой
Простой
