s::before,
s::after {
    clip-path: inset(100%);
    clip: rect(1px, 1px, 1px, 1px);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}
s::before {
    content: " [start of stricken text] ";
}
s::after {
    content: " [end of stricken text] ";
}