.bmy_image_preview {
    position: fixed;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    z-index: 9999999;
}

.bmy_mask {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: .5;
    background: #000;
    z-index: -1;
}

.bmy_menu {
    position: absolute;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%);
    width: 282px;
    height: 44px;
    padding: 0 23px;
    background-color: #606266;
    border-color: #fff;
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    opacity: .8;
}

.bmy_menu i {
    color: #fff;
    font-size: 23px;
    font-weight: 400;
}

.bmy_menu li:nth-child(3){
    width: 60px;
    text-align: center;
 }
 .bmy_menu li:nth-child(4) {
    transform: rotateY(180deg);
 }
.bmy_close {
    top: 40px;
    right: 40px;
    width: 40px;
    height: 40px;
    font-size: 24px;
    color: #fff;
    background-color: #606266;
}
.bmy_prev,
.bmy_next {
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    font-size: 24px;
    color: #fff;
    background-color: #606266;
    border-color: #fff;
}
.bmy_prev {
    left: 40px;
}
.bmy_next {
    right: 40px;
    text-indent: 2px;
}
 .bmy_button {
    position: absolute;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    opacity: .8;
    cursor: pointer;
    box-sizing: border-box;
    user-select: none;
 }
 .bmy_image_canvas {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
 }
 .bmy_image_canvas img {
    transition: all 0.3s ease;
 }

 .sx {
    max-height: 100%;
    max-width: 100%;
 }