common / header
1、header
<meta name="viewport" content="width=device-width, initial-scale=1">
->
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1">
2、CSS
<style>
.carousel-control-prev { left:0!important }
.carousel-control-next { right:0!important }
.dropdown-menu-right { width:100%!important; }
#header-cart .dropdown-menu li, #alert .alert { min-width:0!important; }
</style>