#dw {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    padding: 0;
    height: 100vh;
    overflow: hidden;
    z-index: 220;
    display: none;
}

#dw button {
    position: absolute;
    height: 1rem;
    width: 100%;
    background: #fff;
    left: 0;
    bottom: 0;
    border: none;
    text-align: center;
    font-size: .3rem;
    color: #666;
    z-index: 2;
}

#dw #saveTipBtn {
    width: 80%;
    left: 10%;
    bottom: 15%;
}
#alertMain #alertMask {
    display: none;
}

#alertMain .alert-content {
    justify-content: center;
    align-items: center;
    width: auto !important;
    height: 1rem!important;
    background: rgba(0, 0, 0, .4);
    color: #fff;
    left: 50% !important;
    top: 45%!important;
    -webkit-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    -o-transform: translateX(-50%);
    transform: translateX(-50%);
}

#imgcanvas {
    width: 80%;
    height: 80%;
    overflow: hidden;
    background: #fff;
    max-height: 4020px;
    margin: 0 auto;
    position: absolute;
    left: 10%;
    top: 5%;
}

#imgcanvas:after {
    content: '';
    position: fixed;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .5);
    left: 0;
    top: 0;
}

#imgcanvas img {
    width: 100%;
    height: auto;
    position: relative;
    z-index: 2;
}

#sfeg ul li img {
    width: 100%;
    height: 100%;
}