function presubview(view, textContent) {
return Object.assign(document.createElement("div"), {
textContent,
style: `
position: absolute;
display: flex;
align-items: center;
justify-content: center;
font: 12px var(--sans-serif);
border-radius: 4px;
border: solid 1px #777;
box-sizing: border-box;
top: ${view.top}px;
left: ${view.left}px;
width: ${view.width}px;
height: ${view.height}px;
background: rgba(0,0,0,0.12);
`
});
}