.left_right {
    position: relative;
    display: flex;
    flex-direction: row;
}

.top_bottom {
    position: relative;
    display: flex;
    flex-direction: column;
}

.wk_slide-wrap .wk_wrap img {
    opacity: 0;
}

.wk_slide-wrap .wk_selected .wk_wrap img {
    opacity: 1;
}

.wk_slide-wrap .left_right .wk_banner_item {
    position: absolute;
    top: 0;
    left: -1200px;
    -webkit-transition: all 1s ease 0s;
    -moz-transition: all 1s ease 0s;
    transition: all 1s ease 0s;
    -webkit-opacity: 0;
    -moz-opacity: 0;
    -ms-transition: all 1s ease 0s;
}

.wk_slide-wrap .wk_selected .left_right .wk_banner_item {
    position: absolute;
    left: 0px;
    -webkit-transition-delay: 800ms;
    -moz-transition-delay: 800ms;
    transition-delay: 800ms;
    opacity: 1;
    -webkit-opacity: 1;
    -ms-opacity: 1;
    -moz-opacity: 1;
}

.wk_slide-wrap .wk_selected .left_right .wk_banner_item:last-child {
    position: absolute;
    right: 0;
}

.wk_slide-wrap .wk_selected .left_right .wk_banner_item:last-child img {
    position: absolute;
    right: 0;
}

.wk_slide-wrap .top_bottom .wk_banner_item {
    position: absolute;
    top: 900px;
    -webkit-transition: all 1s ease 0s;
    -moz-transition: all 1s ease 0s;
    transition: all 1s ease 0s;
    -webkit-opacity: 0;
    -moz-opacity: 0;
    -ms-transition: all 1s ease 0s;
    opacity: 1;
}

.wk_slide-wrap .wk_selected .top_bottom .wk_banner_item {
    position: absolute;
    top: 0px;
    left: 0;
    right: 0;
    -webkit-transition-delay: 800ms;
    -moz-transition-delay: 800ms;
    transition-delay: 800ms;
    opacity: 1;
    -webkit-opacity: 1;
    -ms-opacity: 1;
    -moz-opacity: 1;
}

.wk_slide-wrap .wk_selected .top_bottom .wk_banner_item:nth-child(1) {
    position: absolute;
    top: 20%;
}

.wk_slide-wrap .wk_selected .top_bottom .wk_banner_item:nth-child(2) {
    position: absolute;
    top: 50%;
}

.wk_slide-wrap .wk_selected .top_bottom .wk_banner_item:nth-child(3) {
    position: absolute;
    bottom: 0;
}

.wk_slide-wrap .wk_selected .top_bottom .wk_banner_item:last-child img {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.wk_slide-wrap .wk_selected .top_bottom .wk_banner_item img {
    display: inline-block;
    width: 80%;
    margin: 0 auto;
}