.art-block-body, .art-block-tr, .art-block-tl, .art-block-br, .art-block-bl, .art-block-tc, .art-block-bc, .art-block-cr, .art-block-cl, .art-block-cc {
display: none;
}

.art-layout.cell.art-sidebar1{
display: none !important;
}
.art-layout.cell.art-sidebar2{
display: none !important;
}

.art-content-layout .art-sidebar1 {
width: 0% !important;
}
.art-content-layout .art-sidebar2 {
width: 0% !important;
}