html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td {    margin: 0;    padding: 0;    border: 0;    outline: 0;    font-size: 100%;    vertical-align: baseline;    background: transparent;}body {    line-height: 1;    overflow-x: hidden;    color: aliceblue;}ol, ul {    list-style: none;}blockquote, q {    quotes: none;}blockquote:before, blockquote:after, q:before, q:after {    content: '';    content: none;}/*demo CSS*/img {    max-width: 100%;    max-height: 100%;}.main-content {    width: 100%;}.title {    margin: 20px 30px;}.image-list {    width: 100%;    padding: 20px;    margin-left: auto;    margin-right: auto;    display: flex;        flex-wrap: wrap;        justify-content: center;}.image-list .cover {    position: relative;    display: inline-block;    margin-bottom: 10px;    cursor: pointer;}.image-list .cover img {    position: absolute;    margin: auto;    top: 0;    right: 0;    bottom: 0;    left: 0;}/*main CSS*/#pictureViewer {    width: 100%;    height: 100%;    position: fixed;    top: 0;    left: 0;    background-color: rgba(0, 0, 0, .5);    z-index: 999999999999999999999;}#pictureViewer>.content {    background-color: #fff;    position: absolute;    width: 760px;    height: 540px;    margin: auto;    top: 0;    right: 0;    bottom: 0;    left: 0;}#pictureViewer .menu-bar {    width: 100%;}#pictureViewer .menu-bar .handel {    width: 40px;    height: 40px;    float: right;    background-repeat: no-repeat;    background-position: 50%;    cursor: pointer;}#pictureViewer .menu-bar .handel:hover {    background-color: #ff2e67;    -webkit-transition: all .3s;    -moz-transition: all .3s;    -ms-transition: all .3s;    -o-transition: all .3s;    transition: all .3s;}#pictureViewer .menu-bar .handel.maximization {    background-image: url(../img/maximization_black.png);    background-size: 14px;}#pictureViewer .menu-bar .handel.maximization:hover {    background-image: url(../img/maximization_white.png);}#pictureViewer .menu-bar .handel.miniaturization {    background-size: 16px;    background-image: url(../img/miniaturization_black.png);}#pictureViewer .menu-bar .handel.miniaturization:hover {    background-image: url(../img/miniaturization_white.png);}#pictureViewer .menu-bar .handel.close-view {    background-image: url(../img/close_black.png);    background-size: 15px;}#pictureViewer .menu-bar .handel.close-view:hover {    background-image: url(../img/close_white.png);}#pictureViewer .handel-prev, #pictureViewer .handel-next {    display: inline-block;    width: 50px;    height: 70px;    position: relative;    top: calc(50% - 80px);    background-repeat: no-repeat;    background-size: 25px;    background-position: 50%;    cursor: pointer;    -webkit-transition: all .3s;    -moz-transition: all .3s;    -ms-transition: all .3s;    -o-transition: all .3s;    transition: all .3s;}#pictureViewer .handel-prev {    background-image: url(../img/prev_blank.png);}#pictureViewer .handel-next {    background-image: url(../img/next_blank.png);}#pictureViewer .handel-prev:hover, #pictureViewer .handel-next:hover {    background-color: #ff2e67;}#pictureViewer .handel-prev:hover {    background-image: url(../img/prev_white.png);}#pictureViewer .handel-next:hover {    background-image: url(../img/next_white.png);}#pictureViewer .picture-content {    display: inline-block;    width: 80%;    height: calc(100% - 80px);    position: absolute;    margin: 0 auto;    left: 0;    right: 0;}#pictureViewer .picture-content .cover {    position: absolute;    margin: auto;    top: 0;    right: 0;    bottom: 0;    left: 0;}#pictureViewer .counter {    position: absolute;    bottom: 0;    height: 40px;    line-height: 40px;    width: 100%;    text-align: center;    color: #808080;    font-size: 13px;}#pictureViewer .hide {    display: none;}#pictureViewer .left {    float: left;}#pictureViewer .right {    float: right;}#pictureViewer .clear-flex {    clear: both;}#pictureViewer img {    max-width: 100%;    max-height: 100%;}