CSS 文字溢出:ellipsis在IE上不起效果

p {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

p {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    text-overflow: ellipsis;
}

p {
    position:relative;
    line-height:20px;
    height:60px;
    overflow:hidden;
}
p::after {
    content:"...";
    position:absolute;
    bottom:0;
    right:0;
    padding-left:45px;
    background: -webkit-linear-gradient(left, transparent, #fff 55%);
    background: -o-linear-gradient(right, transparent, #fff 55%);
    background: -moz-linear-gradient(right, transparent, #fff 55%);
    background: linear-gradient(to right, transparent, #fff 55%);
}