css 黑暗叠加到图像

Posted 2021-05-13

.start-browsing-content .position-relative:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    transition: background 1s ease;
}