多重颜色CSS3弹性导航下拉菜单代码

代码片段：

<div id="header"><img src="images/header.png"></div>
<div class="swiper-wrapper">
<div class="swiper-slide"><img src="images/shouye_nvsheng_washblow_one.png" class="main-img"></div>
<div class="swiper-slide"><img src="images/shouye_nvsheng_washcutblow_two.png" class="main-img"></div>
<div class="swiper-slide"><img src="images/shouye_nvsheng_hairperm_three.png" class="main-img"></div>
<div class="swiper-slide"><img src="images/shouye_nvsheng_hairdye_four.png" class="main-img"></div>
<div class="swiper-slide"><img src="images/shouye_nvsheng_haircare_five.png" class="main-img"></div>
<div class="swiper-slide"><img src="images/shouye_nvsheng_packeage_six.png" class="main-img"></div>
</div>