Untitled

///////////////////////////
// borders.html contents:
///////////////////////////

<HTML>
    <head>
        <link rel="stylesheet" type="text/css" href="stylesheet.css" />
    </head>
    <body>
        <button type="button" class="style" onClick="window.location='http://stackoverflow.com/'">This is a button</button>
        <div class="style">This is some text in a div</div>
        <textarea ROWS=5 class="style">This is a text area</textarea>
    </body>
</HTML>


///////////////////////////
// stylesheet.css contents:
///////////////////////////

.style{
    text-align: center;
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 1px;
    width: 50%;
    border: solid 5px;
}