body {
    background: #008080;
    font-family: 'MS Sans Serif', sans-serif;
}

.window {
    width: 300px;
    background: silver;
    padding: 10px;
    margin: 50px auto;
    border: 2px solid black;
    box-shadow: 5px 5px black;
}

.title-bar {
    background: navy;
    color: white;
    padding: 5px;
    font-weight: bold;
}

.window-body {
    padding: 10px;
}

input, button {
    width: 100%;
    padding: 5px;
    margin: 5px 0;
    border: 2px solid black;
}

button {
    background: lightgray;
    cursor: pointer;
}