*{
    padding: 0;
    border: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-weight: 800;
    font-size: xx-large;
    text-align: center;

}
body{
    width: 100vw;
    height: 100vh;
    background: white;
    margin: 0px;
    transition: 1s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.container{
    position: relative;
    width: 25%; 
    background-color: black;
    border-radius: 5px;
    
}
h1{
    color: white;
    text-align: center; 
    border-radius: 5px;    
}