有没有办法通过 col-sm 知道用户是否正在使用类似于 flexbox 的小型设备？

Question

我想知道是否有办法知道用户是否在使用小型设备。如果用户使用小型设备或使用台式机，我希望我的导航菜单发生变化。我希望它类似于 col-sm

Answer 1

您可以针对响应式网站或不同尺寸的设备使用 CSS 媒体查询。您也可以根据移动方向使用 CSS。

<style>

    /* Extra small devices (phones, 600px and down) */
    @media only screen and (max-width: 600px) {  

       /* Your CSS Code for this device size */    

      }

    /* Small devices (portrait tablets and large phones, 600px and up) */
    @media only screen and (min-width: 600px) {  

       /* Your CSS Code for this device size */    

    }

    /* Medium devices (landscape tablets, 768px and up) */
    @media only screen and (min-width: 768px) {  

       /* Your CSS Code for this device size */    

    } 

    /* Large devices (laptops/desktops, 992px and up) */
    @media only screen and (min-width: 992px) {  

       /* Your CSS Code for this device size */    

    }      

    /* Extra large devices (large laptops and desktops, 1200px and up) */
    @media only screen and (min-width: 1200px) {

       /* Your CSS Code for this device size */ 

    }

   /* According to Mobile Orientation */
   @media only screen and (orientation: landscape) {   

       /* Your CSS Code for this device orientation */    

   }

  </style>

Answer 2

这就是 @media 查询在 CSS 中的用途。

@media screen and (max-width:479px) {
    .navbar {
        // style of .navbar when screen is less than 479px
    }
}

@media screen and (min-width:480px) {
    .navbar {
        // style of .navbar when screen is 480px or larger
    }
}