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On the mobile website, the navigation menu pops up on the left, click the primary classification to expand the secondary classification

PetitQ HTML/CSS 2023-8-16 seven hundred and fifty-seven zero zero

Mobile websites can pop up navigation menus on the left and click primary classification to expand secondary classification. Next, we will introduce the common left pop-up navigation menus on mobile websites and click primary classification to expand secondary classification. HTML code: About our product center+product classification 1 product classification 4 product classification 2 news

Dark mode – the website supports cool dark mode/night mode

PetitQ HTML/CSS 2023-7-03 3.36K zero zero

Darkmode.js is fun and easy to use. It only needs a piece of code to enable your website to support dark mode. After installation, there is a round button at the bottom right corner of the page. Click it to switch between day/night mode. Darkmode.js is an open source project, so it can be played for free, but for example

Solve absolute positioning height collapse and failure to open parent element

PetitQ HTML/CSS 2023-6-10 seven hundred and thirty-eight zero one

When absolute positioning is set for an element on the website, its height will not affect the height of the parent element. This can affect the layout in some cases. How to solve the problem of absolute positioning height? Let the absolute positioning height of absolute be automatically added to the parent element. Solve absolute

JQuery scrolling event $(window). scroll() realizes the height change of navigation bar

PetitQ HTML/CSS , JQuery/PHP 2023-3-31 1.15K zero zero

In some websites, the height of the navigation menu changes with the drop down of the page, and when the page is restored to the top, the height is restored again. The effect is shown in the following figure: How can the height of the navigation bar change with the page dragging? This requires the use of the jQuery scroll event $(window). scroll(). Let's introduce the implementation method

How to add sliding validation to a web form

PetitQ HTML/CSS 2023-3-31 seven hundred and eighty-three zero zero

In order to prevent the form on the website from being maliciously submitted with spam information, we will add the verification function to the web form. The common verification is verification code verification, in addition to sliding verification. Form validation is performed by sliding the slider. How to add this sliding verification function to the web form? Here's how. Step 1: Make a form box and use it to

The website implements a tag to download pdf files directly instead of opening them in the browser

PetitQ HTML/CSS 2023-3-03 1.18K zero zero

By default, when the pdf file is opened using a hyperlink, the preview will be opened directly in the browser, but not downloaded directly. How to make pdf files automatically downloaded instead of opened after clicking? In fact, it is very simple to let the website click the tag a to download pdf directly instead of opening it in the browser. You just need to add the download attribute to the tag a

Add separators between other elements except the last one

PetitQ HTML/CSS 2022-11-05 six hundred and seventy-seven zero zero

In addition to the last element, add separators between other elements. You can use standard CSS to do this: li: after {content: ',';} li: last of type: after {content: '';} I prefer separate rules

Solution to Font Awesome Website Font Icon Not Displayed

PetitQ HTML/CSS 2022-9-27 2.60K zero zero

In the process of building a website, we often encounter some strange problems. For example, the font icons of some pages in a website are displayed normally, but some font icons are blank. As shown in the following figure: Under normal circumstances: font icon is not displayed: through the check function of the browser, you can find out the reason why the font icon is not displayed, because the style of the font icon is

Horizontal scrolling of elements in containers in web pages through css

PetitQ HTML/CSS 2022-9-26 eight hundred zero zero

The elements in the web page are arranged vertically by default. We can arrange the sub elements in the container horizontally through the css attribute, beyond hiding, and scroll horizontally. The infrastructure is as follows: 1 2 3 4 5 Item can add more horizontal floating, hiding and sliding related css as required:. it

How to do adaptive web pages? Adaptive web page making method

PetitQ HTML/CSS 2022-9-26 1.65K zero zero

Adaptive web page refers to that the web page automatically changes the CSS parameters of the web page according to the header information of the user's browsing device, so as to achieve the effect of displaying different web page layouts with different browsing settings. The reason for adaptive web pages is to use the @ media attribute in CSS3 to judge the transformation. In the actual web page production process, how do we make adaptive web pages? Below

How to arrange web text from right to left like ancient Chinese

PetitQ HTML/CSS 2022-9-12 eight hundred and ninety-four zero zero

In the past, ancient Chinese books were arranged from right to left and from top to bottom. So how can we realize that the words on our own web pages are arranged like ancient books? For CSS3, there are such attributes to control the effect of this. To arrange the web text from right to left like ancient Chinese, you can use the wri

Solution to the problem of big video stuck in website video tag playing (m3u8 streaming media)

PetitQ HTML/CSS 2022-8-27 1.35K zero zero

Since the launch of HTML5, videos on websites can be played directly using video tags like pictures. However, one disadvantage of using video to play video is that it can only play small videos. If the video is large, it will get stuck. Because it needs to load the video before playing. Now let's introduce the website Video