Framework7 error loading Range Slider in pop-up box Popup

Kotlin
IOS
VB.Net
SQL
Node.js
Swift
Ruby
Go
Oracle
Git
Laravel
Mongodb
Asp.Net
More...

framework7 loads the Range Slider range selection slider in the Popup pop-up box. The selection slider and the numeric values are not visible only the title. Solution, I am learning that the front-end framework is a rookie.

<div class="range-slider range-slider-init" data-label="true">
    <input id="demo" min="1" max="24" step="1" id="" type="range"> -sharp
<div>

Framework7 javascript css html5

Apr.11,2021

Previous: Where is the method exported by weex jsframenwork called?

Next: Gitlab-ci the next stage will delete the file generated by the previous stage

False
Django, Why does the system automatically generate an empty session? every time the request is made?
Use python to convert dict1 to dict2, in the example. I tried for a long time but couldn't find a solution.
How to self-start the php-fpm service when building a LNMP environment with docker?
Can an array in react state be bound to a dom state using an element in the array?
Wechat browser version 6.6.5 cannot prevent the springback of pull-up and drop-down to the top under ios system.
In express+hbs, how do you define the routed data as a variable on the page?
How to use symbol reference of Iconfont in dva
How to elegantly add data to JSON objects?
Using node to build video streaming server
The proportional width of the echarts graph is inconsistent.
React uses axios to call the background data. After success, how to jump to the page based on the returned value?
I don't understand what a linux command means. Please explain it.
Vue introduces multiple components in vue-router by nesting named views, and does not refresh the same reference in other pages.
Running nodejs reports fewer errors ")"

Use python recursion to get the response of http request
WeChat red packet acquires openid silently but does not follow it.
How to translate: vanilla JavaScript?
Vue element mouse over highlight color problem
Element-ui DateTimePicker component issues