CSS外观属性，折叠样式


1.做原角样式：border-radius

(1)单行折叠

white-space: nowrap;
overflow: hiddem;
text-onarflac ellipsis;

(2）多行折叠

display: -webkit-box;
webkit-box-orient: vertical;-webkit-line-clamp: 2;
overflow: hidden;
text-overflow: ellipsis;