layer遮幕层无效的问题

shadeClose :true,
//点击背景关闭弹窗，true表示可关闭，false表示不可关闭
shade: [0.8, '#393D49'],
//自定义的遮幕层样式


若出现以上属性无效，可能和引用的layer.js和layer.css有关。

layer.js  v3.1.1

/*! layer-v3.1.1 Web弹层组件 MIT License  http://layer.layui.com/  By 贤心 */
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'+(t[0].content||"no content")+"
";i'+(t[i].content||"no  content")+"";return a}()+"
",success:function(t){var o=t.find(".layui-layer-title").children(),r=t.find(".layui-layer-tabmain").children();o.on("mousedown",function(t){t.stopPropagation?t.stopPropagation():t.cancelBubble=!0;var a=i(this),o=a.index();a.addClass(n).siblings().removeClass(n),r.eq(o).show().siblings().hide(),"function"==typeof e.change&&e.change(o)}),"function"==typeof a&&a(t)}},e))},r.photos=function(t,n,a){function o(e,t,i){var n=new Image;return n.src=e,n.complete?t(n):(n.onload=function(){n.onload=null,t(n)},void(n.onerror=function(e){n.onerror=null,i(e)}))}var s={};if(t=t||{},t.photos){var l=t.photos.constructor===Object,f=l?t.photos:{},u=f.data||[],d=f.start||0;s.imgIndex=(0|d)+1,t.img=t.img||"img";var y=t.success;if(delete t.success,l){if(0===u.length)return r.msg("没有图片")}else{var p=i(t.photos),h=function(){u=[],p.find(t.img).each(function(e){var t=i(this);t.attr("layer-index",e),u.push({alt:t.attr("alt"),pid:t.attr("layer-pid"),src:t.attr("layer-src")||t.attr("src"),thumb:t.attr("src")})})};if(h(),0===u.length)return;if(n||p.on("click",t.img,function(){var e=i(this),n=e.attr("layer-index");r.photos(i.extend(t,{photos:{start:n,data:u,tab:t.tab},full:t.full}),!0),h()}),!n)return}s.imgprev=function(e){s.imgIndex--,s.imgIndex<1&&(s.imgIndex=u.length),s.tabimg(e)},s.imgnext=function(e,t){s.imgIndex++,s.imgIndex>u.length&&(s.imgIndex=1,t)||s.tabimg(e)},s.keyup=function(e){if(!s.end){var t=e.keyCode;e.preventDefault(),37===t?s.imgprev(!0):39===t?s.imgnext(!0):27===t&&r.close(s.index)}},s.tabimg=function(e){if(!(u.length<=1))return f.start=s.imgIndex-1,r.close(s.index),r.photos(t,!0,e)},s.event=function(){s.bigimg.hover(function(){s.imgsee.show()},function(){s.imgsee.hide()}),s.bigimg.find(".layui-layer-imgprev").on("click",function(e){e.preventDefault(),s.imgprev()}),s.bigimg.find(".layui-layer-imgnext").on("click",function(e){e.preventDefault(),s.imgnext()}),i(document).on("keyup",s.keyup)},s.loadi=r.load(1,{shade:!("shade"in t)&&.9,scrollbar:!1}),o(u[d].src,function(n){r.close(s.loadi),s.index=r.open(i.extend({type:1,id:"layui-layer-photos",area:function(){var a=[n.width,n.height],o=[i(e).width()-100,i(e).height()-100];if(!t.full&&(a[0]>o[0]||a[1]>o[1])){var r=[a[0]/o[0],a[1]/o[1]];r[0]>r[1]?(a[0]=a[0]/r[0],a[1]=a[1]/r[0]):r[0]return[a[0]+"px",a[1]+"px"]}(),title:!1,shade:.9,shadeClose:!0,closeBtn:!1,move:".layui-layer-phimg img",moveType:1,scrollbar:!1,moveOut:!0,isOutAnim:!1,skin:"layui-layer-photos"+c("photos"),content:'
'+(u.length>1?'':"")+'
'+(u[d].alt||"")+""+s.imgIndex+"/"+u.length+"
",success:function(e,i){s.bigimg=e.find(".layui-layer-phimg"),s.imgsee=e.find(".layui-layer-imguide,.layui-layer-imgbar"),s.event(e),t.tab&&t.tab(u[d],e),"function"==typeof y&&y(e)},end:function(){s.end=!0,i(document).off("keyup",s.keyup)}},t))},function(){r.close(s.loadi),r.msg("当前图片地址异常
是否继续查看下一张？",{time:3e4,btn:["下一张","不看了"],yes:function(){u.length>1&&s.imgnext(!0,!0)}})})}},o.run=function(t){i=t,n=i(e),l.html=i("html"),r.open=function(e){var t=new s(e);return t.index}},e.layui&&layui.define?(r.ready(),layui.define("jquery",function(t){r.path=layui.cache.dir,o.run(layui.$),e.layer=r,t("layer",r)})):"function"==typeof define&&define.amd?define(["jquery"],function(){return o.run(e.jQuery),r}):function(){o.run(e.jQuery),r.ready()}()}(window);

layer.js

 

layer.css

.layui-layer-imgbar, .layui-layer-imgtit a, .layui-layer-tab .layui-layer-title span, .layui-layer-title {
    text-overflow: ellipsis;
    white-space: nowrap
}

html #layuicss-layer {
    display: none;
    position: absolute;
    width: 1989px
}

.layui-layer, .layui-layer-shade {
    position: fixed;
    _position: absolute;
    pointer-events: auto
}

.layui-layer-shade {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    _height: expression(document.body.offsetHeight+"px")
}

.layui-layer {
    -webkit-overflow-scrolling: touch;
    top: 150px;
    left: 0;
    margin: 0;
    padding: 0;
    background-color: #fff;
    -webkit-background-clip: content;
    border-radius: 2px;
    box-shadow: 1px 1px 50px rgba(0, 0, 0, .3)
}

.layui-layer-close {
    position: absolute
}

.layui-layer-content {
    position: relative
}

.layui-layer-border {
    border: 1px solid #B2B2B2;
    border: 1px solid rgba(0, 0, 0, .1);
    box-shadow: 1px 1px 5px rgba(0, 0, 0, .2)
}

.layui-layer-load {
    background: url(loading-1.gif) center center no-repeat #eee
}

.layui-layer-ico {
    background: url(icon.png) no-repeat
}

.layui-layer-btn a, .layui-layer-dialog .layui-layer-ico, .layui-layer-setwin a {
    display: inline-block;
    *display: inline;
    *zoom: 1;
    vertical-align: top
}

.layui-layer-move {
    display: none;
    position: fixed;
    *position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    cursor: move;
    opacity: 0;
    filter: alpha(opacity=0);
    background-color: #fff;
    z-index: 2147483647
}

.layui-layer-resize {
    position: absolute;
    width: 15px;
    height: 15px;
    right: 0;
    bottom: 0;
    cursor: se-resize
}

.layer-anim {
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
    -webkit-animation-duration: .3s;
    animation-duration: .3s
}

@-webkit-keyframes layer-bounceIn {
    0% {
        opacity: 0;
        -webkit-transform: scale(.5);
        transform: scale(.5)
    }
    100% {
        opacity: 1;
        -webkit-transform: scale(1);
        transform: scale(1)
    }
}

@keyframes layer-bounceIn {
    0% {
        opacity: 0;
        -webkit-transform: scale(.5);
        -ms-transform: scale(.5);
        transform: scale(.5)
    }
    100% {
        opacity: 1;
        -webkit-transform: scale(1);
        -ms-transform: scale(1);
        transform: scale(1)
    }
}

.layer-anim-00 {
    -webkit-animation-name: layer-bounceIn;
    animation-name: layer-bounceIn
}

@-webkit-keyframes layer-zoomInDown {
    0% {
        opacity: 0;
        -webkit-transform: scale(.1) translateY(-2000px);
        transform: scale(.1) translateY(-2000px);
        -webkit-animation-timing-function: ease-in-out;
        animation-timing-function: ease-in-out
    }
    60% {
        opacity: 1;
        -webkit-transform: scale(.475) translateY(60px);
        transform: scale(.475) translateY(60px);
        -webkit-animation-timing-function: ease-out;
        animation-timing-function: ease-out
    }
}

@keyframes layer-zoomInDown {
    0% {
        opacity: 0;
        -webkit-transform: scale(.1) translateY(-2000px);
        -ms-transform: scale(.1) translateY(-2000px);
        transform: scale(.1) translateY(-2000px);
        -webkit-animation-timing-function: ease-in-out;
        animation-timing-function: ease-in-out
    }
    60% {
        opacity: 1;
        -webkit-transform: scale(.475) translateY(60px);
        -ms-transform: scale(.475) translateY(60px);
        transform: scale(.475) translateY(60px);
        -webkit-animation-timing-function: ease-out;
        animation-timing-function: ease-out
    }
}

.layer-anim-01 {
    -webkit-animation-name: layer-zoomInDown;
    animation-name: layer-zoomInDown
}

@-webkit-keyframes layer-fadeInUpBig {
    0% {
        opacity: 0;
        -webkit-transform: translateY(2000px);
        transform: translateY(2000px)
    }
    100% {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0)
    }
}

@keyframes layer-fadeInUpBig {
    0% {
        opacity: 0;
        -webkit-transform: translateY(2000px);
        -ms-transform: translateY(2000px);
        transform: translateY(2000px)
    }
    100% {
        opacity: 1;
        -webkit-transform: translateY(0);
        -ms-transform: translateY(0);
        transform: translateY(0)
    }
}

.layer-anim-02 {
    -webkit-animation-name: layer-fadeInUpBig;
    animation-name: layer-fadeInUpBig
}

@-webkit-keyframes layer-zoomInLeft {
    0% {
        opacity: 0;
        -webkit-transform: scale(.1) translateX(-2000px);
        transform: scale(.1) translateX(-2000px);
        -webkit-animation-timing-function: ease-in-out;
        animation-timing-function: ease-in-out
    }
    60% {
        opacity: 1;
        -webkit-transform: scale(.475) translateX(48px);
        transform: scale(.475) translateX(48px);
        -webkit-animation-timing-function: ease-out;
        animation-timing-function: ease-out
    }
}

@keyframes layer-zoomInLeft {
    0% {
        opacity: 0;
        -webkit-transform: scale(.1) translateX(-2000px);
        -ms-transform: scale(.1) translateX(-2000px);
        transform: scale(.1) translateX(-2000px);
        -webkit-animation-timing-function: ease-in-out;
        animation-timing-function: ease-in-out
    }
    60% {
        opacity: 1;
        -webkit-transform: scale(.475) translateX(48px);
        -ms-transform: scale(.475) translateX(48px);
        transform: scale(.475) translateX(48px);
        -webkit-animation-timing-function: ease-out;
        animation-timing-function: ease-out
    }
}

.layer-anim-03 {
    -webkit-animation-name: layer-zoomInLeft;
    animation-name: layer-zoomInLeft
}

@-webkit-keyframes layer-rollIn {
    0% {
        opacity: 0;
        -webkit-transform: translateX(-100%) rotate(-120deg);
        transform: translateX(-100%) rotate(-120deg)
    }
    100% {
        opacity: 1;
        -webkit-transform: translateX(0) rotate(0);
        transform: translateX(0) rotate(0)
    }
}

@keyframes layer-rollIn {
    0% {
        opacity: 0;
        -webkit-transform: translateX(-100%) rotate(-120deg);
        -ms-transform: translateX(-100%) rotate(-120deg);
        transform: translateX(-100%) rotate(-120deg)
    }
    100% {
        opacity: 1;
        -webkit-transform: translateX(0) rotate(0);
        -ms-transform: translateX(0) rotate(0);
        transform: translateX(0) rotate(0)
    }
}

.layer-anim-04 {
    -webkit-animation-name: layer-rollIn;
    animation-name: layer-rollIn
}

@keyframes layer-fadeIn {
    0% {
        opacity: 0
    }
    100% {
        opacity: 1
    }
}

.layer-anim-05 {
    -webkit-animation-name: layer-fadeIn;
    animation-name: layer-fadeIn
}

@-webkit-keyframes layer-shake {
    0%, 100% {
        -webkit-transform: translateX(0);
        transform: translateX(0)
    }
    10%, 30%, 50%, 70%, 90% {
        -webkit-transform: translateX(-10px);
        transform: translateX(-10px)
    }
    20%, 40%, 60%, 80% {
        -webkit-transform: translateX(10px);
        transform: translateX(10px)
    }
}

@keyframes layer-shake {
    0%, 100% {
        -webkit-transform: translateX(0);
        -ms-transform: translateX(0);
        transform: translateX(0)
    }
    10%, 30%, 50%, 70%, 90% {
        -webkit-transform: translateX(-10px);
        -ms-transform: translateX(-10px);
        transform: translateX(-10px)
    }
    20%, 40%, 60%, 80% {
        -webkit-transform: translateX(10px);
        -ms-transform: translateX(10px);
        transform: translateX(10px)
    }
}

.layer-anim-06 {
    -webkit-animation-name: layer-shake;
    animation-name: layer-shake
}

@-webkit-keyframes fadeIn {
    0% {
        opacity: 0
    }
    100% {
        opacity: 1
    }
}

.layui-layer-title {
    padding: 0 80px 0 20px;
    height: 42px;
    line-height: 42px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
    color: #333;
    overflow: hidden;
    background-color: #F8F8F8;
    border-radius: 2px 2px 0 0
}

.layui-layer-setwin {
    position: absolute;
    right: 15px;
    *right: 0;
    top: 15px;
    font-size: 0;
    line-height: initial
}

.layui-layer-setwin a {
    position: relative;
    width: 16px;
    height: 16px;
    margin-left: 10px;
    font-size: 12px;
    _overflow: hidden
}

.layui-layer-setwin .layui-layer-min cite {
    position: absolute;
    width: 14px;
    height: 2px;
    left: 0;
    top: 50%;
    margin-top: -1px;
    background-color: #2E2D3C;
    cursor: pointer;
    _overflow: hidden
}

.layui-layer-setwin .layui-layer-min:hover cite {
    background-color: #2D93CA
}

.layui-layer-setwin .layui-layer-max {
    background-position: -32px -40px
}

.layui-layer-setwin .layui-layer-max:hover {
    background-position: -16px -40px
}

.layui-layer-setwin .layui-layer-maxmin {
    background-position: -65px -40px
}

.layui-layer-setwin .layui-layer-maxmin:hover {
    background-position: -49px -40px
}

.layui-layer-setwin .layui-layer-close1 {
    background-position: 1px -40px;
    cursor: pointer
}

.layui-layer-setwin .layui-layer-close1:hover {
    opacity: .7
}

.layui-layer-setwin .layui-layer-close2 {
    position: absolute;
    right: -28px;
    top: -28px;
    width: 30px;
    height: 30px;
    margin-left: 0;
    background-position: -149px -31px;
    *right: -18px;
    _display: none
}

.layui-layer-setwin .layui-layer-close2:hover {
    background-position: -180px -31px
}

.layui-layer-btn {
    text-align: right;
    padding: 0 15px 12px;
    pointer-events: auto;
    user-select: none;
    -webkit-user-select: none
}

.layui-layer-btn a {
    height: 28px;
    line-height: 28px;
    margin: 5px 5px 0;
    padding: 0 15px;
    border: 1px solid #dedede;
    background-color: #fff;
    color: #333;
    border-radius: 2px;
    font-weight: 400;
    cursor: pointer;
    text-decoration: none
}

.layui-layer-btn a:hover {
    opacity: .9;
    text-decoration: none
}

.layui-layer-btn a:active {
    opacity: .8
}

.layui-layer-btn .layui-layer-btn0 {
    border-color: #1E9FFF;
    background-color: #1E9FFF;
    color: #fff
}

.layui-layer-btn-l {
    text-align: left
}

.layui-layer-btn-c {
    text-align: center
}

.layui-layer-dialog {
    min-width: 260px
}

.layui-layer-dialog .layui-layer-content {
    position: relative;
    padding: 20px;
    line-height: 24px;
    word-break: break-all;
    overflow: hidden;
    font-size: 14px;
    overflow-x: hidden;
    overflow-y: auto
}

.layui-layer-dialog .layui-layer-content .layui-layer-ico {
    position: absolute;
    top: 16px;
    left: 15px;
    _left: -40px;
    width: 30px;
    height: 30px
}

.layui-layer-ico1 {
    background-position: -30px 0
}

.layui-layer-ico2 {
    background-position: -60px 0
}

.layui-layer-ico3 {
    background-position: -90px 0
}

.layui-layer-ico4 {
    background-position: -120px 0
}

.layui-layer-ico5 {
    background-position: -150px 0
}

.layui-layer-ico6 {
    background-position: -180px 0
}

.layui-layer-rim {
    border: 6px solid #8D8D8D;
    border: 6px solid rgba(0, 0, 0, .3);
    border-radius: 5px;
    box-shadow: none
}

.layui-layer-msg {
    min-width: 180px;
    border: 1px solid #D3D4D3;
    box-shadow: none
}

.layui-layer-hui {
    min-width: 100px;
    background-color: #000;
    filter: alpha(opacity=60);
    background-color: rgba(0, 0, 0, .6);
    color: #fff;
    border: none
}

.layui-layer-hui .layui-layer-content {
    padding: 12px 25px;
    text-align: center
}

.layui-layer-dialog .layui-layer-padding {
    padding: 20px 20px 20px 55px;
    text-align: left
}

.layui-layer-page .layui-layer-content {
    position: relative;
    overflow: auto
}

.layui-layer-iframe .layui-layer-btn, .layui-layer-page .layui-layer-btn {
    padding-top: 10px
}

.layui-layer-nobg {
    background: 0 0
}

.layui-layer-iframe iframe {
    display: block;
    width: 100%
}

.layui-layer-loading {
    border-radius: 100%;
    background: 0 0;
    box-shadow: none;
    border: none
}

.layui-layer-loading .layui-layer-content {
    width: 60px;
    height: 24px;
    background: url(loading-0.gif) no-repeat
}

.layui-layer-loading .layui-layer-loading1 {
    width: 37px;
    height: 37px;
    background: url(loading-1.gif) no-repeat
}

.layui-layer-ico16, .layui-layer-loading .layui-layer-loading2 {
    width: 32px;
    height: 32px;
    background: url(loading-2.gif) no-repeat
}

.layui-layer-tips {
    background: 0 0;
    box-shadow: none;
    border: none
}

.layui-layer-tips .layui-layer-content {
    position: relative;
    line-height: 22px;
    min-width: 12px;
    padding: 8px 15px;
    font-size: 12px;
    _float: left;
    border-radius: 2px;
    box-shadow: 1px 1px 3px rgba(0, 0, 0, .2);
    background-color: #000;
    color: #fff
}

.layui-layer-tips .layui-layer-close {
    right: -2px;
    top: -1px
}

.layui-layer-tips i.layui-layer-TipsG {
    position: absolute;
    width: 0;
    height: 0;
    border-width: 8px;
    border-color: transparent;
    border-style: dashed;
    *overflow: hidden
}

.layui-layer-tips i.layui-layer-TipsB, .layui-layer-tips i.layui-layer-TipsT {
    left: 5px;
    border-right-style: solid;
    border-right-color: #000
}

.layui-layer-tips i.layui-layer-TipsT {
    bottom: -8px
}

.layui-layer-tips i.layui-layer-TipsB {
    top: -8px
}

.layui-layer-tips i.layui-layer-TipsL, .layui-layer-tips i.layui-layer-TipsR {
    top: 5px;
    border-bottom-style: solid;
    border-bottom-color: #000
}

.layui-layer-tips i.layui-layer-TipsR {
    left: -8px
}

.layui-layer-tips i.layui-layer-TipsL {
    right: -8px
}

.layui-layer-lan[type=dialog] {
    min-width: 280px
}

.layui-layer-lan .layui-layer-title {
    background: #4476A7;
    color: #fff;
    border: none
}

.layui-layer-lan .layui-layer-btn {
    padding: 5px 10px 10px;
    text-align: right;
    border-top: 1px solid #E9E7E7
}

.layui-layer-lan .layui-layer-btn a {
    background: #fff;
    border-color: #E9E7E7;
    color: #333
}

.layui-layer-lan .layui-layer-btn .layui-layer-btn1 {
    background: #C9C5C5
}

.layui-layer-molv .layui-layer-title {
    background: #009f95;
    color: #fff;
    border: none
}

.layui-layer-molv .layui-layer-btn a {
    background: #009f95;
    border-color: #009f95
}

.layui-layer-molv .layui-layer-btn .layui-layer-btn1 {
    background: #92B8B1
}

.layui-layer-iconext {
    background: url(icon-ext.png) no-repeat
}

.layui-layer-prompt .layui-layer-input {
    display: block;
    width: 230px;
    height: 36px;
    margin: 0 auto;
    line-height: 30px;
    padding-left: 10px;
    border: 1px solid #e6e6e6;
    color: #333
}

.layui-layer-prompt textarea.layui-layer-input {
    width: 300px;
    height: 100px;
    line-height: 20px;
    padding: 6px 10px
}

.layui-layer-prompt .layui-layer-content {
    padding: 20px
}

.layui-layer-prompt .layui-layer-btn {
    padding-top: 0
}

.layui-layer-tab {
    box-shadow: 1px 1px 50px rgba(0, 0, 0, .4)
}

.layui-layer-tab .layui-layer-title {
    padding-left: 0;
    overflow: visible
}

.layui-layer-tab .layui-layer-title span {
    position: relative;
    float: left;
    min-width: 80px;
    max-width: 260px;
    padding: 0 20px;
    text-align: center;
    overflow: hidden;
    cursor: pointer
}

.layui-layer-tab .layui-layer-title span.layui-this {
    height: 43px;
    border-left: 1px solid #eee;
    border-right: 1px solid #eee;
    background-color: #fff;
    z-index: 10
}

.layui-layer-tab .layui-layer-title span:first-child {
    border-left: none
}

.layui-layer-tabmain {
    line-height: 24px;
    clear: both
}

.layui-layer-tabmain .layui-layer-tabli {
    display: none
}

.layui-layer-tabmain .layui-layer-tabli.layui-this {
    display: block
}

.layui-layer-photos {
    -webkit-animation-duration: .8s;
    animation-duration: .8s
}

.layui-layer-photos .layui-layer-content {
    overflow: hidden;
    text-align: center
}

.layui-layer-photos .layui-layer-phimg img {
    position: relative;
    width: 100%;
    display: inline-block;
    *display: inline;
    *zoom: 1;
    vertical-align: top
}

.layui-layer-imgbar, .layui-layer-imguide {
    display: none
}

.layui-layer-imgnext, .layui-layer-imgprev {
    position: absolute;
    top: 50%;
    width: 27px;
    _width: 44px;
    height: 44px;
    margin-top: -22px;
    outline: 0;
    blr: expression(this.onFocus=this.blur())
}

.layui-layer-imgprev {
    left: 10px;
    background-position: -5px -5px;
    _background-position: -70px -5px
}

.layui-layer-imgprev:hover {
    background-position: -33px -5px;
    _background-position: -120px -5px
}

.layui-layer-imgnext {
    right: 10px;
    _right: 8px;
    background-position: -5px -50px;
    _background-position: -70px -50px
}

.layui-layer-imgnext:hover {
    background-position: -33px -50px;
    _background-position: -120px -50px
}

.layui-layer-imgbar {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 32px;
    line-height: 32px;
    background-color: rgba(0, 0, 0, .8);
    background-color: #000 \9;
    filter: Alpha(opacity=80);
    color: #fff;
    overflow: hidden;
    font-size: 0
}

.layui-layer-imgtit * {
    display: inline-block;
    *display: inline;
    *zoom: 1;
    vertical-align: top;
    font-size: 12px
}

.layui-layer-imgtit a {
    max-width: 65%;
    overflow: hidden;
    color: #fff
}

.layui-layer-imgtit a:hover {
    color: #fff;
    text-decoration: underline
}

.layui-layer-imgtit em {
    padding-left: 10px;
    font-style: normal
}

@-webkit-keyframes layer-bounceOut {
    100% {
        opacity: 0;
        -webkit-transform: scale(.7);
        transform: scale(.7)
    }
    30% {
        -webkit-transform: scale(1.05);
        transform: scale(1.05)
    }
    0% {
        -webkit-transform: scale(1);
        transform: scale(1)
    }
}

@keyframes layer-bounceOut {
    100% {
        opacity: 0;
        -webkit-transform: scale(.7);
        -ms-transform: scale(.7);
        transform: scale(.7)
    }
    30% {
        -webkit-transform: scale(1.05);
        -ms-transform: scale(1.05);
        transform: scale(1.05)
    }
    0% {
        -webkit-transform: scale(1);
        -ms-transform: scale(1);
        transform: scale(1)
    }
}

.layer-anim-close {
    -webkit-animation-name: layer-bounceOut;
    animation-name: layer-bounceOut;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
    -webkit-animation-duration: .2s;
    animation-duration: .2s
}

@media screen and (max-width: 1100px) {
    .layui-layer-iframe {
        overflow-y: auto;
        -webkit-overflow-scrolling: touch
    }
}

layer.css