How Can I Create CSS3 Effects in Internet Explorer 7/8?

To control the scaling behavior of textarea, you need to use the resize attribute of CSS; 1. Set resize to both to allow horizontal and vertical scaling (default); 2. Set to horizontal to only allow width adjustment; 3. Set to vertical to only allow height adjustment; 4. Set to none to completely prohibit scaling; 5. Block and inline correspond to block-level and inline directions respectively; combined with properties such as min-height, max-width, etc., the scaling range can be limited, and this attribute is widely supported in modern browsers and is suitable for block-level elements whose overflow is not visible.

Pseudo-classesinCSSarekeywordsthatstyleelementsbasedonstate,position,orattributes,improvinginteractivityandreducingtheneedforextraHTMLclasses;theyareappliedusingacolon(:)syntaxlikeselector:pseudo-class,enablingdynamiceffectssuchasa:hover{color:red;}f

prefers-reduced-motion improves accessibility by detecting whether the user sets reduced animations in the system. When the value of reduce is reduced, the animation should be disabled or simplified to avoid user discomfort. Use @media(prefers-reduced-motion:reduce) to override the default animation, set animation or transition to none to eliminate harmful motion effects, but retain slight animation effects such as color changes. At the same time, tests should ensure complete functions, so as to provide users with a safer and more comfortable browsing environment without affecting the core experience.

Thepointer-eventspropertyinCSScontrolswhetheranelementcanbethetargetofpointerevents.1.Usepointer-events:nonetodisableinteractionslikeclicksorhoverswhilekeepingtheelementvisuallyvisible.2.Applyittooverlaystoallowclick-throughbehaviortounderlyingelemen

Use HTML and CSS to create drop-down menus without JavaScript. 2. Trigger the submenu display through the :hover pseudo-class. 3. Use nested lists to build a structure, and set the hidden and suspended display effects in CSS. 4. Transition animation can be added to improve the visual experience.

Usethebox-shadowpropertytoadddropshadows.Definehorizontalandverticaloffsets,blur,spread,color,andoptionalinsetforinnershadows.Multipleshadowsarecomma-separated.Example:box-shadow:5px10px8pxrgba(0,0,0,0.3);createsasoftblackshadow.

Useobject-fitormax-widthwithheight:autotopreventimagedistortion;object-fitcontrolshowimagesfillcontainerswhilepreservingaspectratios,andmax-width:100%;height:autoensuresresponsivescalingwithoutstretching.

TheCSSfilterpropertyallowseasyimagestylingwitheffectslikeblur,brightness,andgrayscale.Usefilter:filter-function(value)onimagesorbackgroundimages.Commonfunctionsincludeblur(px),brightness(%),contrast(%),grayscale(%),saturate(%),andhue-rotate(deg).Mult