* {
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

.main-div{
    width:100%;
    height:100%;
    padding:4em;
    padding-left:10%;
    padding-right:10%;
}

.log-img {
    max-width:500px; 
    width:100%;
}

.div-align {
    text-align: center;
}

.head-style{
    padding-top:3em;
}