.slider-container .slider {
    -webkit-animation: round 10s linear infinite;
            animation: round 10s linear infinite;
}

@-webkit-keyframes round {
    10% {
        opacity: 1;
        filter: alpha(opacity=100);
        /* 0 - 1秒 淡入*/
    }
    48% {
        opacity: 1;
        filter: alpha(opacity=100);
        /* 1- 5秒靜止*/
    }
    50% {
        opacity: 0;
        filter: alpha(opacity=0);
        /* 5-6秒淡出*/
    }
}
@keyframes round {
    10% {
        opacity: 1;
        filter: alpha(opacity=100);
        /* 0 - 1秒 淡入*/
    }
    48% {
        opacity: 1;
        filter: alpha(opacity=100);
        /* 1- 5秒靜止*/
    }
    50% {
        opacity: 0;
        filter: alpha(opacity=0);
        /* 5-6秒淡出*/
    }
}
/* 每張圖片進場時間相隔5秒 */
.slider-container .slider:nth-child(2) {
    -webkit-animation-delay: 0s;
            animation-delay: 0s;
}
.slider-container .slider:nth-child(1) {
    -webkit-animation-delay: 4s;
            animation-delay: 4s;
}
/* 當滑鼠移到圖片上時，暫停播放動畫。 */
/*.slider-container:hover div {
    -webkit-animation-play-state: paused;
            animation-play-state: paused;
}*/