img#greetingspict {
    padding: 15px;
    width: 100%;
}
img#rapatpict {
    width: 40%;
    margin: auto;
}
img#pengumumanpict {
    width: 40%;
    margin: auto;
}
@media screen and (min-width: 450px){
    img#greetingspict{
        display: none;
    }
}