选取某元素父元素的最后两个元素
> &:nth-last-child(-n+2){
border-bottom:none;
}
超出两行隐藏出现省略号...
{
line-height: 14px;
overflow: hidden;
text-overflow: ellipsis;
display: -webkit-box;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
}
文本超出一行,则字体变小
let timer=setInterval(() => {
let f=document.getElementsByClassName('father')[0];
let c=document.getElementsByClassName('child')[0];
if (f&&c) {
let fw=f.offsetWidth;
let cw=c.offsetWidth;
if (fw-cw<20) {
this.is9px=true;
}
clearInterval(timer);
}
}, 50);