.demo{
    display: flex;
    justify-content: center;
    align-items: center;
}
.demo img{
    width: 60%;
}
.demo1 {
    display: flex;
    padding: 0 100px;
    justify-content: center;
}
.demo1 img{
    width: 330px;
    height: 441px;
}
.demo1 img:nth-of-type(1){
    margin-right: 100px;
}
.demo2 {
    display: flex;
    align-items: center;
    padding: 0 100px;
    justify-content: center;


}
.demo2 img:nth-of-type(1){
    width:264px;
    height: 350px;
}
.demo2 img:nth-of-type(2){
    width:440px;
    height: 204px;
    margin-left:100px; 
}