/*第二屏*/
.gray-section{
	background:#252F34;
	color:#fff;
}
.article-preview:nth-child(odd){
	background:rgba(255,255,255,0.05);
}

/*圖片區(qū)域*/
.gray-section?.img-section{
	width:45%;
}
.img-section?img{
	width:100%;
}
.article-preview?>?div{
	float:left;
}

/*清除浮動(dòng)*/
.article-preview:after{
	content:'';
	display:block;
	clear:both;
}


/*文字區(qū)域*/

.gray-section?.text-section{
	width:55%;
}

.text-section{
	position:relative;
	top:68px;
	left:50px;
}
.text-section?h2{
	margin-bottom:20px;
}
.text-section?p{
	font-size:18px;
	letter-spacing:1px;
}
.text-section?.sub-heading{
	font-size:22px;
	margin-top:0;
}
.text-section?>?*{
	max-width:90%;
}

各位年薪80w的童靴，這是什么問題啊，按照老師的教程，給

.article-preview > div{

float:left;

}

這個(gè)加font-size:0; ?結(jié)果h2標(biāo)題就會(huì)消息，求看看 是代碼哪里有問題