.teacher-list li { width: 280px; margin-right: 20px;}
.teacher-list li:nth-child(4n) { margin-right: 0; }

.teacher-list li dl dd .title {font-weight: bold;line-height: 50px; height: 50px; }
.teacher-list li dl dd .abstract {display: -webkit-box;-webkit-box-orient: vertical;-webkit-line-clamp: 2;overflow: hidden;line-height: 20px;}
.teacher-list li dl dd { width: 165px; margin-left: 10px; }
.teacher-list li:hover dl dt.zoomIn { animation-name: zoomIn;}
.teacher-list li dl dt { border-radius: 50%; overflow: hidden; }

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale3d(.3, .3, .3);
    }

    50% {
        opacity: 1;
    }
}