saas-one/frontend/saas-web/ext/classic/theme-classic-sandbox/sass/example/slicer.css

.widget-container {
    margin: 10px;
    width: 400px;
    position: relative;
    overflow: visible;
}

.x-slicer-target,
.x-slicer-target * {
    opacity: 1;
}

/* ensure body does not overlap the rounded corners of framed panel/window when slicing */
.x5-panel-body,
.x5-window-body {
    background: transparent;
}