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- CSS Animations: Create a professional website
- CSSanimationsenhanceprofessionalwebsitesbyimprovinguserengagementandvisualappeal.1)UseCSSforsmoothtransitionsandanimationswithoutJavaScript.2)Implementsimpleeffectslikebuttonhoverandloadingspinners.3)Optimizeperformancewithwill-change,mobile-friendly
- CSS Tutorial . Web Front-end 637 2025-06-26 00:10:21
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- What is the universal selector (*) and when should you use it?
- Universal selector* is used to match all elements in CSS and is often used to reset default styles, such as unified margin, padding, and box-sizing; however, it should be avoided in large projects to avoid affecting performance, and be careful to avoid affecting third-party libraries or nested components. Specific usage scenarios include: 1. Unify the basic style when resetting the style; 2. When limiting the scope of action, it can be defined in combination with the parent; 3. Use inheritance attributes with caution and can be used with: not() to exclude specific elements. Overall, use with caution to avoid potential problems.
- CSS Tutorial . Web Front-end 935 2025-06-26 00:10:01
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- Lightly Poking at the CSS if() Function in Chrome 137
- The CSS?if() function was recently implemented in Chrome 137, making it the first instance where we have it supported by a mainstream browser. Let's poke at it a bit at a very high level.
- CSS Tutorial . Web Front-end 282 2025-06-25 10:22:12
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- How do you create a flex container?
- To create a Flex container, simply set the display property to flex or inline-flex. 1. Use display:flex to create block-level containers, and the child elements are arranged horizontally by default; 2. Use display:inline-flex to create inline containers, and the width is determined by the content; 3. You can control the layout by adjusting the main axis direction, justify-content, and align-items attributes, such as horizontal distribution and vertical centering.
- CSS Tutorial . Web Front-end 242 2025-06-25 00:46:21
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- How can you inline critical CSS to improve initial page load time?
- InliningcriticalCSSspeedsupinitialpageloadbyembeddingessentialstylesdirectlyinHTML.1.IdentifycriticalCSSforabove-the-foldcontentusingtoolslikePenthouseorplugins.2.Inlinethesestylesinataginsidetoreducerender-blockingresources.3.Loadnon-criticalCSSasyn
- CSS Tutorial . Web Front-end 717 2025-06-25 00:46:01
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- What is the difference between a pseudo-class and a pseudo-element?
- Apseudo-classtargetselementsbasedonstateorposition,whileapseudo-elementstylespartsofanelementnotpresentintheDOM.1.Pseudo-classeslike:hover,:focus,:nth-child(),and:visitedtargetelementstatesorpositions.2.Pseudo-elementslike::before,::after,::first-lin
- CSS Tutorial . Web Front-end 427 2025-06-25 00:44:01
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- What is the difference between a class selector and an ID selector?
- 1. ID selector is used for unique elements, class selector is used for multiple elements. 2. ID has higher priority and is not repeatable, suitable for unique elements such as navigation bars or anchor links; class selectors are more flexible and reusable, suitable for applications of the same style and modular components in many places. 3. Developers sometimes avoid using IDs because of high specificity that may cause style overwrite problems, but it is still useful in JavaScript and URL fragments.
- CSS Tutorial . Web Front-end 280 2025-06-25 00:43:40
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- How does the will-change property improve performance?
- The will-change attribute should be used with caution to optimize performance, which enables the browser to pre-optimize rendering and synthesis by informing the browser element of possible changes in properties. It should be used when the animation is not simple, has lag or affects the user experience, such as transform, opacity, top, left, width, height and other attributes, and should be removed in time after the animation is over; avoid excessive use to avoid excessive memory usage or slow rendering. Specific operations include: 1. Dynamically add will-change before the change occurs; 2. Restore to auto after the animation is over; 3. Apply only to key elements. In addition, other performance optimization methods need to be combined, such as using hardware acceleration attributes and reducing layout jitter
- CSS Tutorial . Web Front-end 507 2025-06-25 00:42:00
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- What Can You Do With CSS Animations? A Comprehensive Guide
- CSSanimationscanenhancewebprojectsinseveralways:1)Createhovereffects,likescalingbuttons;2)Designloadingindicators,suchasspinningloaders;3)Developmulti-stageanimations,likecharactermovements;4)Optimizeperformancebyanimatingtransformandopacity;5)Ensure
- CSS Tutorial . Web Front-end 545 2025-06-25 00:41:41
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- How to select an element based on its language with the :lang() pseudo-class?
- The :lang() pseudo-class selects elements and applies styles through the HTML lang attribute. It is written as element:lang(lang-code), and supports ISO standard language code. 1. Ensure that the lang attributes are correctly set by HTML elements; 2. Use lang (language code) to write corresponding CSS rules; 3. Apply to differentiated control of multilingual websites, such as fonts, font chokes and other scenarios. It should be noted that it does not rely on content recognition and does not inherit the parent language settings.
- CSS Tutorial . Web Front-end 521 2025-06-25 00:41:11
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- How to combine multiple conditions in a single media query?
- The method of using media query to satisfy multiple conditions at the same time in CSS is as follows: 1. Use and to connect multiple conditions to ensure that all conditions are true, such as @mediascreenand(min-width:600px)and(max-width:900px)and(min-device-pixel-ratio:2); 2. Use commas to represent the relationship of "or", as long as one of the conditions is satisfied, such as @media(max-width:480px),(max-height:320px); 3. The logical priority can be clarified through brackets to enhance readability; 4. Use not to negate a certain condition, such as @media, for example, @media(max-width:480px),(max-height:320px); 3. The logical priority can be clarified through brackets to enhance readability; 4. Use not to negate a certain condition, such as @media
- CSS Tutorial . Web Front-end 490 2025-06-25 00:38:51
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- How to implement a basic container query?
- To implement basic container query, you must first define the container and query conditions, then execute and process the results. 1. Define container: Select a suitable data structure such as a list or dictionary in Python. 2. Set query conditions: clarify the rules for filtering elements such as number%2==0. 3. Execute query: Use built-in functions such as list comprehension or filter(). 4. Processing results: Output or further process query results and consider performance and error handling. Ensure clear conditions, efficient structure and comprehensive testing to ensure the effectiveness of query.
- CSS Tutorial . Web Front-end 732 2025-06-25 00:38:31
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- What are some common CSS gotchas or bugs developers run into?
- The problem of element height collapse can be solved by setting overflow:hidden, using clearfix or using Flexbox instead; 2. Margin merge can be avoided by adding border, using inline-block or flex/grid layout; 3. The width of flex sub-elements does not take effect. Set min-width, flex-shrink:0 or flex:00200px; 4. Position:absolute positioning abnormality requires checking whether the positioning mode of the ancestor element is set; 5. The image exceeds the container or the proportional distortion can be controlled by max-width, object-fit or background-size.
- CSS Tutorial . Web Front-end 401 2025-06-25 00:37:30
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- How to place items on a CSS grid using line numbers?
- ToplaceitemsonaCSSGridusinglinenumbers,youspecifythestartandendlinesforrowsandcolumns.1)Gridlinesareautomaticallynumberedstartingfrom1atthetop-leftcorner,withverticallinesseparatingcolumnsandhorizontallinesseparatingrows.2)Usegrid-columnandgrid-rowto
- CSS Tutorial . Web Front-end 504 2025-06-25 00:36:31
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