.gambar {
	border: 1px solid #ddd;
    border-radius: 3px;
    padding: 3px;
    max-width: 100%;
    height: auto;
    width: auto;
}
.footer {
    position: absolute;
    bottom: 0;
    width: 99%;
    height: 40px;
    line-height: 40px;

}
.center_div{
    margin: 0 auto;
    width:80% /* value of your choice which suits your alignment */
}
.acc-settings {
    max-width: 95%;
    padding-top: 20px;
    line-height: 40px;
}
.alert-atas {
    max-width: 95%;
    padding-top: 20px;
}
.alert-bawah {
    max-width: 87%;
    padding-top: 20px;
}