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  • How to select an element that does not have a certain class with CSS Selectors?
    How to select an element that does not have a certain class with CSS Selectors?
    In CSS, use:not() to negate the pseudo-class to select elements that do not contain specific class names, such as button:not(.primary) to select buttons that are not.primary; multiple exclusions need to be written in chains, such as button:not(.primary):not(.secondary); in JS, the same effect can also be achieved through querySelectorAll; it can also be used in combination with attributes and IDs, such as input:not([disabled]) or div:not(#header); it cannot be used in nested and has minimal performance impact.
    CSS Tutorial . Web Front-end 430 2025-07-02 00:57:30
  • CSS tutorial on best practices for performance
    CSS tutorial on best practices for performance
    To improve web page loading speed, optimize CSS writing, including: 1. Reasonably organize and streamline CSS files, split them according to modules and merge and compress them through construction tools; 2. Delete unused CSS and compress code, remove spaces and comments; 3. Avoid nesting of complex selectors, and prioritize using class names to directly locate elements; 4. Reduce hierarchy depth and avoid abuse of general selectors and attribute selectors; 5. Optimize rearrangement and redrawing, use transform and opacity to implement animations, and first leave the document stream when batch modifying styles; 6. Use media queries to optimize responsive loading, mobile priority and load corresponding styles according to the device. These practices can improve loading speed, optimize maintenance efficiency and enhance user experience.
    CSS Tutorial . Web Front-end 399 2025-07-02 00:55:51
  • How to center an entire grid within the viewport?
    How to center an entire grid within the viewport?
    To make the entire grid layout centered in the viewport, it can be achieved by the following methods: 1. Use margin:0auto to achieve horizontal centering, and the container needs to be set to set the fixed width, which is suitable for fixed layout; 2. Use Flexbox to set the justify-content and align-items properties in the outer container, and combine min-height:100vh to achieve vertical and horizontal centering, which is suitable for full-screen display scenarios; 3. Use CSSGrid's place-items property to quickly center on the parent container, which is simple and has good support from modern browsers, and at the same time, it is necessary to ensure that the parent container has sufficient height. Each method has applicable scenarios and restrictions, just choose the appropriate solution according to actual needs.
    CSS Tutorial . Web Front-end 264 2025-07-02 00:53:01
  • CSS tutorial focusing on mobile-first design
    CSS tutorial focusing on mobile-first design
    Mobile-firstCSSdesignrequiressettingtheviewportmetatag,usingrelativeunits,stylingfromsmallscreensup,optimizingtypographyandtouchtargets.First,addtocontrolscaling.Second,use%,em,orreminsteadofpixelsforflexiblelayouts.Third,writebasestylesformobile,the
    CSS Tutorial . Web Front-end 632 2025-07-02 00:52:21
  • CSS tutorial on creating custom scrollbars
    CSS tutorial on creating custom scrollbars
    Custom scrollbars can be implemented through CSS, mainly using ::-webkit-scrollbar pseudo-element, suitable for Webkit browsers. 1. Use ::-webkit-scrollbar to set the overall width; 2.::-webkit-scrollbar-track to define the track background; 3.::-webkit-scrollbar-thumb to set the slider style; 4. You can adapt to Firefox through scrollbar-width and scrollbar-color. Supported browsers include Chrome, Edge, Safari and Opera. Firefox requires alternative attributes, IE/E
    CSS Tutorial . Web Front-end 992 2025-07-02 00:32:40
  • CSS tutorial for styling a custom checkbox and radio button
    CSS tutorial for styling a custom checkbox and radio button
    TostylecheckboxesandradiobuttonswithCSS,firsthidethedefaultinputusingopacity:0whilekeepingitfunctional.1.Wraptheinputinalabelanduseabsolutepositioning.2.CreateacustomcheckmarkelementstyledwithCSS.3.Use:checkedpseudo-classwithsiblingselectorstoreflect
    CSS Tutorial . Web Front-end 1017 2025-07-02 00:29:31
  • How to make a responsive image gallery CSS tutorial
    How to make a responsive image gallery CSS tutorial
    The key to responsive picture gallery is to use the right CSS layout and styling skills. First, use Flexbox or Grid layout, where Grid is more suitable for multi-column responsive gallery, and automatically arranges by setting .gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;}; secondly, ensure the image is adaptable, maintain the proportion and fill the container through img{max-width:100%;height:auto;display:block;}; thirdly, add hover effects such as magnification and shadow
    CSS Tutorial . Web Front-end 445 2025-07-02 00:29:00
  • What are CSS blend modes (mix-blend-mode, background-blend-mode)?
    What are CSS blend modes (mix-blend-mode, background-blend-mode)?
    CSSblendmodescontrolhowcolorsfromdifferentelementsmixonawebpage.Thetwomainpropertiesaremix-blend-mode,whichblendsanelementwithcontentbeneathit,andbackground-blend-mode,whichblendsanelement’sownbackgroundlayers.Commonvaluesincludemultiply,screen,overl
    CSS Tutorial . Web Front-end 397 2025-07-02 00:12:11
  • Using CSS Cascade Layers With Tailwind Utilities
    Using CSS Cascade Layers With Tailwind Utilities
    Being the bad boy I am, I don't take Tailwind's default approach to cascade layers as the "best" one. Over a year experimenting with Tailwind and vanilla CSS, I've come across what I believe is a better solution.
    CSS Tutorial . Web Front-end 897 2025-07-01 10:30:17
  • What is the conic-gradient() function?
    What is the conic-gradient() function?
    Theconic-gradient()functioninCSScreatescirculargradientsthatrotatecolorstopsaroundacentralpoint.1.Itisidealforpiecharts,progressindicators,colorwheels,anddecorativebackgrounds.2.Itworksbydefiningcolorstopsatspecificangles,optionallystartingfromadefin
    CSS Tutorial . Web Front-end 353 2025-07-01 01:16:11
  • CSS Grid layout tutorial explained
    CSS Grid layout tutorial explained
    CSSGrid is a powerful 2D web layout tool suitable for handling complex page structures. 1. Defining the Grid container requires display:grid; 2. Using grid-template-columns and grid-template-rows to set the column and row size; 3. Position sub-items through grid-column and grid-row or span keywords; 4. Using grid-template-areas to name areas to simplify complex layout; 5. Use gap attributes to control spacing; 6. Automatically add new rows through grid-auto-rows; 7. Cooperate with media queries to realize responsive adjustments, mastering these key points can efficiently build modern
    CSS Tutorial . Web Front-end 714 2025-07-01 01:14:41
  • How do you trigger a CSS transition?
    How do you trigger a CSS transition?
    To trigger CSS transition animation, you need to define the transition property and change the declared animated properties. 1. Define transition properties: Use transition or transition-property in CSS to specify the attributes and duration and duration to be animated; 2. Change the attribute value: Change the attribute value through:hover, JavaScript, pseudo-classes, etc.; 3. Pay attention to performance and compatibility: Avoid using transition:all, select properties that can be rendered efficiently, such as transform and opacity, and ensure that the initial state is defined. The browser will only execute it when the property value changes and the property is included in the transition declaration.
    CSS Tutorial . Web Front-end 273 2025-07-01 01:14:01
  • What are CSS filters (blur, grayscale, saturate, etc.)?
    What are CSS filters (blur, grayscale, saturate, etc.)?
    CSSfiltersarevisualeffectsappliedviaCSStoelementslikeimagesorvideos.Theyworkusingthefilterproperty,withcommonoptionsincludingblur(px),grayscale(%),saturate(%),contrast(%),andbrightness(%).1.Filterscanbestackedbyseparatingthemwithspaces.2.Usecasesincl
    CSS Tutorial . Web Front-end 772 2025-07-01 01:13:41
  • What are the four main transition properties (property, duration, timing-function, delay)?
    What are the four main transition properties (property, duration, timing-function, delay)?
    The four main properties of CSS transition include transition-property, duration, timing-function and delay. ① Transition-property specifies the CSS attribute to be animate, such as width or background-color, and the unlisted properties will not transition smoothly; ②duration defines the animation duration, in seconds or milliseconds, and the default is 0s, that is, there is no animation; ③timing-function controls the animation speed curve, such as ease, linear or custom cubic-bezier; ④ delay sets the waiting time before the animation starts, and is used to synchronize multiple
    CSS Tutorial . Web Front-end 776 2025-07-01 01:10:30

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