我有一个类似于下图的div结构.

我需要应用“文本溢出：省略号”;在较小的窗口中在这个div结构中发短信.(图2)

但它并没有像我预期的那样适用.这是我的HTML代码

    .header {
		height: 60px;
		width: 100%;
	}
	.header > .header_middle {
		margin: 0 auto;
		width: 100%;
	}
	.header > .header_middle.share-file-header > .caption {
		float: left !important;
		line-height: 60px;
		overflow: hidden;
		padding-right: 0 !important;
		text-overflow: ellipsis;
		white-space: nowrap;
		padding: 0 30px;
	}
	.header > .header_middle.share-file-header .settings {
		line-height: inherit;
		padding: 0 15px 0 0;
		float: right;
		height: 60px;
		position: relative;
	}
	.shared-person-detail-wrapper {
		display: inline-block;
		overflow: hidden;
		text-overflow: ellipsis;
		line-height: inherit;
	}
	.settings .share-files-msg,.settings .shared-person {
		display: block;
		font-size: 14px;
		text-overflow: ellipsis;
	}
	.settings .more-persons-wraper {
		display: inline-block;
		position: relative;
	}