@media screen and (max-width: 500px)
{
#wrapper {
    width: 100%;
text-align:center;
}
#intro, .services_intro, #service_blocks, .person {
width:80%;
margin:auto;
}
}

@media screen and (max-width: 700px)
{
.service {
    float: none;
margin-left:auto;
margin-right:auto;
}

div#hidden_menu, #navigation {
    display: none!important;
}
}