将图标并行排放，效果图如下
用到的是浮动模型float，设置左浮动。给每一个图片都包裹在一个盒子中，再用后代选择器对立面所有的盒子设置左浮动。
代码块：
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>图标导航栏</title>
<style>
.box1 div{
float: left;
}
</style>
</head>
<body>
<div class="box1">
<div class="box2">
<img src="img/素材/1.png" alt="">
</div>
<div class="box3">
<img src="img/素材/2.png" alt="">
</div>
<div class="box4">
<img src="img/素材/3.png" alt="">
</div>
<div class="box5">
<img src="img/素材/4.png" alt="">
</div>
<div class="box6">
<img src="img/素材/5.png" alt="">
</div>
<div class="box7">
<img src="img/素材/6.png" alt="">
</div>
<div class="box8">
<img src="img/素材/7.png" alt="">
</div>
</div>
</body>
</html>
