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  • css clip-path examples
    css clip-path examples
    CSSclip-path can create unique shapes and responsive designs. 1. Use circle(), ellipse(), inset() and polygon() to create basic shapes; 2. Use polygon() to create image masks such as hexagons; 3. Use viewport units to realize responsive wave edges; 4. Use transition to realize hover animation; 5. It is often used in avatars, hero areas, galleries and buttons. Pay attention to browser compatibility and add -webkit-prefix to ensure support. The final effect is elegantly downgraded, and use simple code to achieve rich visual effects.
    CSS Tutorial . Web Front-end 572 2025-07-28 02:15:20
  • What is will-change in CSS?
    What is will-change in CSS?
    will-changeisaCSSpropertythathintstothebrowseraboutupcomingchangestoanelement,enablingpreemptiveoptimizationforsmootheranimations.1.Itworksbyinformingthebrowsertopromotetheelementtoacompositinglayer,pre-allocateGPUmemory,andoptimizerendering.2.Syntax
    CSS Tutorial . Web Front-end 879 2025-07-28 01:47:40
  • What is BEM naming convention?
    What is BEM naming convention?
    BEMstandsforBlock,Element,Modifier,anamingconventionthatimprovescodemodularityandscalability.1.Ablockisastandalonecomponent(e.g.,card).2.Anelementisapartofablock,namedasblock__element(e.g.,card__title).3.Amodifierindicatesvariations,namedasblock--mod
    CSS Tutorial . Web Front-end 361 2025-07-28 01:38:01
  • css box shadow examples
    css box shadow examples
    Common examples of CSSbox-shadow include: 1. Basic shadow: simple outer shadows by setting horizontal offset, vertical offset, blur radius and color, suitable for buttons or cards; 2. Inner shadow: Use the inset keyword to display the shadows inward, which is often used to simulate button pressing or input box focus effect; 3. Floating card effect: Use multiple layers of shadows such as 04px8px and 06px20px to create a MaterialDesign-style suspension, suitable for information card display; 4. Soft long projection: Use larger blur radius such as 010px30pxrgba(0,0,0,0.15), to create long-distance soft shadows in modern design, suitable for mobile terminal groups
    CSS Tutorial . Web Front-end 467 2025-07-28 01:36:11
  • Difference between `em` and `rem` units in CSS?
    Difference between `em` and `rem` units in CSS?
    ThemaindifferencebetweenemandreminCSSistheirreferencepoint:emisrelativetothefontsizeofitsownelementorinheritedfromaparent,whileremisalwaysrelativetotheroothtmlelement’sfontsize.1.emscalesbasedonthelocalfontsize,whichcanleadtocompoundingeffectsinneste
    CSS Tutorial . Web Front-end 770 2025-07-28 01:14:20
  • css tooltip example
    css tooltip example
    The CSSTooltip effect is implemented through pure CSS without JavaScript; 2. Use :hover to trigger visibility and opacity changes to achieve display and fade in animation; 3. The prompt box is positioned by position:absolute, and left:50% plus transform:translateX (-50%) to achieve horizontal centering; 4. Use ::after pseudo-element to create a small arrow pointing down; 5.z-index:1 to ensure that the prompt box is at the top level; 6. You can adjust the attributes such as top, bottom and border-color to achieve prompt boxes in different directions up, down, left and right directions; 7. It is recommended to use vi
    CSS Tutorial . Web Front-end 732 2025-07-28 00:56:02
  • How do you apply shadows to boxes and text? (`box-shadow`, `text-shadow`)
    How do you apply shadows to boxes and text? (`box-shadow`, `text-shadow`)
    To effectively use CSS shadows, you need to master the correct usage of box-shadow and text-shadow. 1.box-shadow is used for element border shadows. The syntax includes horizontal offset, vertical offset, blur radius, extension radius, color and inset parameters. Multiple shadows can be set to enhance the three-dimensional sense; 2. Text-shadow is used for text shadows. The syntax includes horizontal offset, vertical offset, blur radius and color, and also supports multiple shadow effects; 3. When using it, keep the shadows natural, choose rgba colors and test the display effects under different backgrounds to avoid excessive use affecting the visual hierarchy.
    CSS Tutorial . Web Front-end 484 2025-07-28 00:44:30
  • How to change text color in CSS?
    How to change text color in CSS?
    To change the text color in CSS, you need to use the color attribute; 1. Use the color attribute to set the text foreground color, supporting color names (such as red), hexadecimal codes (such as #ff0000), RGB values (such as rgb(255,0,0)), HSL values (such as hsl(0,100%,50%)), and RGBA or HSLA with transparency (such as rgba(255,0,0,0.5)); 2. You can apply colors to any element containing text, such as h1 to h6 titles, paragraph p, link a (note the color settings of different states of a:link, a:visited, a:hover, a:active), buttons, div, span, etc.; 3. Most
    CSS Tutorial . Web Front-end 230 2025-07-27 04:25:42
  • css make div 100% height of screen
    css make div 100% height of screen
    To make the div occupy the full screen height, the easiest way is to use 100vh; if 100%, you need to set the html and body height to 100%; it is recommended to use min-height:100dvh to be compatible with mobile browser UI changes to ensure that the viewport height can be fully filled on various devices.
    CSS Tutorial . Web Front-end 980 2025-07-27 04:25:21
  • Describe different CSS units and when to use them
    Describe different CSS units and when to use them
    In web development, the choice of CSS units depends on design requirements and responsive performance. 1. Pixels (px) are used to fix sizes such as borders and icons, but are not conducive to responsive design; 2. Percentage (%) is adjusted according to the parent container, suitable for streaming layout but attention to context dependence; 3.em is based on the current font size, rem is based on the root element font, suitable for elastic fonts and unified theme control; 4. Viewport units (vw/vh/vmin/vmax) are adjusted according to the screen size, suitable for full-screen elements and dynamic UI; 5. Auto, inherit, initial and other values are used to automatically calculate, inherit or reset styles, which helps to flexibly layout and style management. The rational use of these units can improve page flexibility and responsiveness.
    CSS Tutorial . Web Front-end 737 2025-07-27 04:24:30
  • css calc() function example
    css calc() function example
    The calc() function is used to dynamically calculate the CSS attribute value and supports mixed unit operation; 1. Spaces must be added around and -, such as calc (100%-20px); 2. Responsive layout can be achieved in combination with %, px, em, vh and other units; 3. Commonly used for width adjustment, height setting, font size and center positioning; 4. It can avoid using JavaScript or excessive multimedia query to improve layout flexibility.
    CSS Tutorial . Web Front-end 447 2025-07-27 04:24:01
  • css flexbox example
    css flexbox example
    This example shows how to create a three-column layout using CSSFlexbox, with 100px fixed on the left, 80px fixed on the right, adaptive in the middle, and all column contents are vertically centered. 1. The parent container sets display:flex to enable elastic layout; 2. The middle column uses flex:1 to occupy the remaining space; 3. Each child achieves text centering through align-items:center and justify-content:center; 4. Fixed width and flex:1 to achieve flexible layout; this method simplifies the complexity of traditional floating or positioning, is suitable for responsive design, and can be easily expanded to equal distribution, reverse arrangement or vertical arrangement, fully realizing the high level of modern web layout
    CSS Tutorial . Web Front-end 914 2025-07-27 04:23:01
  • How to style an HTML5 element?
    How to style an HTML5 element?
    To customize HTML5 element styles, you must first hide the default tag and add custom icons, and then use CSS to beautify the container and interaction effects while ensuring accessibility. 1. Set list-style:none to remove the default triangle; 2. Use the ::after pseudo-element to add custom expansion symbols (such as "?" or " ") and change to "▼" or "?" when details[open]; 3. Wrap content in a div and apply animations (such as slideDown) to achieve smooth expansion; 4. Keep cursor:pointer, focus outline and sufficient contrast to ensure usability. Finally, a beautiful and easy-to-use pull-down panel can be achieved by combining these technologies.
    CSS Tutorial . Web Front-end 683 2025-07-27 04:22:40
  • css dotted border example
    css dotted border example
    ACSSdottedbordercreatesaseriesofdotsaroundanelementfordecorationoremphasis.1.Asimpledottedborderisappliedusingborder:3pxdotted#000onadiv,wherethethicknesscontrolsdotsize.2.Customizecolorandsize,suchas4pxdottedredforwarnings,dottedblueforinfo,ordotted
    CSS Tutorial . Web Front-end 679 2025-07-27 04:21:21

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