.content .container {
    background:url("https://clean-scarlet-jellyfish.185-175-124-54.cpanel.site/wp-content/uploads/2016/02/header.jpg")!important;
}

div.postit {
    background:url("https://clean-scarlet-jellyfish.185-175-124-54.cpanel.site/wp-content/uploads/2011/10/postit.png") center top no-repeat;
}