.js_tablehint_tips { position: relative; }
.js_tablehint_tips:after { content: "スクロールできます"; width: 200px; height: 100px; display: flex; align-items: flex-end; justify-content: center; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); background: rgba(0, 0, 0, .7) url(tablescroll.gif) 50% 50% no-repeat; background-size: 100px; border-radius: 10px; color: #fff; box-sizing: border-box; padding: 0.25em; }