InstallDartSassvianpmafterinstallingNode.jsusingnpminstall-gsass.2.CompileSCSStoCSSusingthecommandsassinput.scssoutput.css.3.Usesass--watchinput.scssoutput.csstoauto-compileonsave.4.Watchentirefolderswithsass--watchscss:css.5.Usepartialswith_prefixfo

accent-color is an attribute used in CSS to customize the highlight colors of form elements such as checkboxes, radio buttons and sliders; 1. It directly changes the default color of the selected state of the form control, such as changing the blue check mark of the checkbox to red; 2. Supported elements include input boxes of type="checkbox", type="radio" and type="range"; 3. Using accent-color can avoid complex custom styles and extra DOM structures, and maintain native accessibility; 4. It is generally supported by modern browsers, and old browsers need to be downgraded; 5. Set accent-col

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

CSStransitionsenablesmoothpropertychangeswithminimalcode,idealforhovereffectsandinteractivefeedback.1.Usethesyntaxtransition:propertydurationtiming-functiondelay;todefinetransitions,liketransition:background-color0.3sease0.1s;.2.Specifytransition-pro

UseautomatedtoolslikePurgeCSSorUnCSStoscanandremoveunusedCSS;2.IntegratepurgingintoyourbuildprocessviaWebpack,Vite,orTailwind’scontentconfiguration;3.AuditCSSusagewithChromeDevToolsCoveragetabbeforepurgingtoavoidremovingneededstyles;4.Safelistdynamic

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.

Install VueI18n: Vue3 uses npminstallvue-i18n@next, Vue2 uses npminstallvue-i18n; 2. Create language files such as en.json and es.json in the locales directory, supporting nested structures; 3. Create instances through createI18n in Vue3 and mount them in main.js, Vue2 uses Vue.use(VueI18n) and instantiate VueI18n; 4. Use {{$t('key')}} interpolation in templates, use useI18n's t function in Vue3Composition API, and Vue2Options API

Astackingcontextisaself-containedlayerinCSSthatcontrolsthez-orderofoverlappingelements,wherenestedcontextsrestrictz-indexinteractions;itiscreatedbypropertieslikez-indexonpositionedelements,opacity