.mainbg{
    margin: 0px; 
    padding: 0px; 
    background-image:url(../bg.png); 
    background-repeat: no-repeat; 
    background-size: cover; 
}
.mainbox{
    display: flex;
    width: 100%;
    height: 100vh;
    align-items: center;
    justify-content: center;
}
.mainbox img{
    width: 35%;
}