我一直在研究一款使用API提取Instagram图片的应用。我需要在悬停时显示心脏翻转时“喜欢”的数量和用户名。我怎么做到这一点?我已经附上了我当前的应用程序前端(这里没有显示用户名和投票)。非常感谢你!
<ul>
<li id= 'instagram'>
<div class="roll">
<IMG class="on" img src='{{i[0]}}'/>
<IMG class="off" img src="http://f.cl.ly/items/321322043C0Y2g0R2K0g/smallerheart.jpg"/>
<div id="caption">{{i[1]}}</div>
<div id="username">{{i[2]}}</div>
<div id="likes">{{i[3]}}</div>
</div>
</li>
</ul>
img {
width: 300px;
height: 300px;
padding: 1px;
background-color: white;}
.roll
.width: 300px;}
.height: 300px;}
.opacity:0;}
.roll {background: blue;}
.roll .on {display: block;}
.roll .off {display: none;}
.roll:hover .off { z-index:0; position: relative; display: block;}
.roll:hover .on {z-index:0; position: absolute; display: block;}
li#instagram {
float: left;
display: ;
margin-bottom: 20px;
background-color: white;
z-index:1;
list-style-type: none;}
#caption {
font-family:'Linotype Univers W01 Cn';
font-size: 14px;
font-color:white;
width: 300px;
height: 35px;
margin-left: auto;
margin-right: auto;
padding: 3px 0px 0px 0px;
text-align: center;
background-color: #FF6633;
overflow: hidden;}