ght: 30px;
    content: "";
    margin-top: -27px;
    border-style: solid;
    border-color: blue;
    border-width: 0 0 5px 0;
    border-radius: 20px;
}
</style>
</head>
<body>
<hr class="style18">

<div style="background-color: #f0f0f0; overflow: hidden;width: 300px;height: 30px;border-width: 5px 0 5px 0;border-radius: 20px; border-color: red; border-style: solid; ">
</div>

</body>
</html>