Found a total of 10000 related content
How to Pre-Select a Specific Option in a PHP Dropdown Menu?
Article Introduction：This article demonstrates how to pre-select an option in a dropdown menu using PHP. It covers setting a specific month as the default selected item based on data retrieved from a database. The main issue discussed is how to achieve this selection by
2024-10-21
comment 0
526
How to create a multi-level dropdown in Bootstrap navbar?
Article Introduction：To create a multi-level drop-down menu in the Bootstrap navigation bar, 1. You need to build a multi-level menu through a nested <ul> structure; 2. Add a custom CSS to control the submenu position, such as setting the relative positioning of .dropdown-submenu and the left offset of .dropdown-menu; 3. Use data-bs-toggle="dropdown" or custom JS to implement the submenu expansion logic, such as clicking to switch the display status; 4. Optimizing mobile interaction, it is recommended to click to expand, limit the levels, and consider using the folded menu to adapt to touch screen operations.
2025-07-21
comment 0
925
select (HTML element)
Article Introduction：HTML Select Element
HTML Select Element
The select form control provides a dropdown menu for user selection. It allows single or multiple selections depending on the `multiple` attribute. Styling with CSS can be challenging d
2025-02-26
comment 0
1015
How to Convert PDF to JPG on Mac? How to Change It on MacBook?
Article Introduction：To turn PDF to JPG on Mac:Right-click your PDF file and select Open With > Preview. Select File > Export.Choose a location for your saved file.Use the Format dropdown menu to choose JPEG.Give your file a name.Click Save
2025-06-24
comment 0
185
10 jQuery Cool Menu Effect Plugins
Article Introduction：10 cool jQuery menu special effects plug-ins to improve website user experience! We have shared many jQuery navigation menu plugins, and now we bring you 10 more amazing jQuery menu effects plugins. Enjoy it! Related readings: - 10 dazzling jQuery navigation menus - 15 excellent jQuery navigation menus
Right-click menu
This plugin is very easy to use and compact, allowing you to create right-click menus.
Source Code Demo 2. jQuery Multi-level Menu – FX CSS Menu with Submenu
100% CSS menu, visual effects provided by jQuery. Only use Javascript to implement special effects. Fully compatible with cross-browser, package
2025-03-01
comment 0
942
How to Create a Drop-Down Nav Menu With HTML5, CSS3, and JQuery
Article Introduction：This tutorial demonstrates building a responsive dropdown navigation menu using HTML5, CSS3, and jQuery. We'll cover the HTML structure, CSS styling, and jQuery functionality to create a smooth and user-friendly experience.
Project Setup:
Create a
2025-03-04
comment 0
1202
