.container{
    position: fixed;
    top: 50%;
    left: 50%;
    /* bring your own prefixes */
    transform: translate(-50%, -50%);
    text-align: center;
    margin: 0;
    padding: 0;
}

h1{
    font-size: 155px;
    font-weight: 800;
    color: #00346b;
    margin: 0;
    padding: 0;
}

h4{
    font-size: 40px;
    margin: 0;
    padding: 0;
   
    margin-bottom: 10px;
}
h3{
    font-size: 20px;
    margin: 0;
    padding: 0;
    margin-bottom: 10px;
}