o-text-overflow: ellipsis; text-overflow:

Ellipsis When Text Too Long To Fit

No Firefox support, but Opera, Webkit, and IE7+

h3 {
        width: 300px;
        overflow: hidden;
        white-space: nowrap;
        -o-text-overflow: ellipsis;  
        text-overflow: ellipsis;
}

出典：http://css-tricks.com/

o-text-overflow: ellipsis;          text-overflow:の関連ワード：[webdesign][snippet]