#wrapper {
    
    width: 800px;
    Height:100%;
    margin: 0 auto;
    text-align: center;
}

#textbox {
    
    width: 200px;

    background-color: #8cc710;
    color: #fff;
    padding: 25px;
    left: 50%;
margin: 30% auto;
font-family: Helvetica, Arial, sans-serif;

}

h1 {
    
    font-size: 20px;
    
}

p {
    
    font-size: 14px;
    font-weight: bold;
}