body {
    margin: 0;
    font-family: sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f0f2f5;
}

.header {
    text-align: center;
}

.icon-sprite {
    width: 50px;
    height: 50px;
    margin: 10px auto;
    background: url('sprite.png') no-repeat;
    background-position: 0 0; /* Shift this to see different parts of your sprite */
}

.btn {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
}
.btn:hover {
    background-color: #0056b3;
}