div{
    display:flex;
    align-items:center;
    justify-content:center;
    height:100vh;
    background-color:rgba(153, 217, 217, 0.3);
    padding:0 25px;
}
img{
    width:100%;
    max-width:800px;
    height:auto;
    
}
body{
    margin:0!important;
}