Dialog.html

<div id="sdialog" style="
    position: absolute;
    top: 200px;
    left: 200px;
    min-width: 390px;
    overflow-x: hidden;
    font-size: 13px;
    color: #323232;
    background-color: #e5e5e5;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    z-index: 100000;
    box-shadow: 0px 0px 18px -2px rgba(0,0,0,0.5), 0px 0px 1px 0px rgba(0,0,0,0.5);
    border: 1px solid white;
    border-radius: 1px;
    -webkit-font-smoothing: antialiased;
    text-shadow: 1px 1px 1px rgba(0,0,0,0.004);
    text-rendering: optimizeLegibility;
                         "><h1 style="
    background-color: #353535;
    color:  white;
    font-size: 18px;
    text-shadow: none;
    font-weight: bold;
    padding: 10px 5px;
    margin: 0;
    /* padding: 0px; */
">Heading</h1><div id="body" style="
    padding: 15px;
    background-color: white;
">Hello World</div><div id="btnbar" style="
    display: block;
    background-color: #E2E2E2;
    box-shadow: inset 0px 9px 9px -11px rgba(0,0,0,0.4);
    padding: 5px;
    border-top: 1px solid #C3C3C3;
">
  <a href="#" style="
    display: inline-block;
    background: #cccccc;
    padding: 1px 5px;
    border-radius: 3px;
    border: 1px solid whitesmoke;
    box-shadow: 0px 0px 6px -1px rgba(0,0,0,0.5);
    color: black;
">Button</a>
</div></div>