Please tell me how to crop the background image like this, with symmetrically rounded corners.
Now the code looks like this:
html .background-container {
position: fixed;
top: 0;
left: 0;
height: 100vh;
width: 100vw;
background: url(https://site/uploads/default/original/2X/2/26d48362654a9e03c716eeaff4a176cbbd01d6b8.png);
background-size: cover;
}