How to create html in webstorm

Theaspect-ratioCSSpropertydefinesthewidth-to-heightratioofanelement,ensuringconsistentproportionsinresponsivedesigns.1.Itisapplieddirectlytoelementslikeimages,videos,orcontainersusingsyntaxsuchasaspect-ratio:16/9.2.Commonusecasesincludemaintainingres

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The:emptypseudo-classselectselementswithnochildrenorcontent,includingspacesorcomments,soonlytrulyemptyelementslikematchit;1.Itcanhideemptycontainersbyusing:empty{display:none;}tocleanuplayouts;2.Itallowsaddingplaceholderstylingvia::beforeor::after,wh

Use CSSclip-path to create non-rectangular shapes in the browser without additional images or complex SVG; 2. Common shape functions include inset(), circle(), ellipse() and polygon(), where polygon() implements custom shapes by defining coordinate points, which is suitable for creating creative designs such as dialog bubbles; 3. clip-path can achieve dynamic effects through CSS transition or keyframe animation, such as circle expansion during hovering, but only supports inter-shape animations of the same type and number of vertices; 4. Pay attention to responsiveness and accessibility to ensure that the content is still available when not supported, the text is readable, avoid excessive cropping, and control the number of polygon vertices to optimize performance. At the same time, it is necessary to know that

vw and vh units achieve responsive design by associating element sizes with viewport width and height; 1vw is equal to 1% of viewport width, and 1vh is equal to 1% of viewport height; commonly used in full screen area, responsive fonts and elastic spacing; 1. Use 100vh or better 100dvh in the full screen area to avoid the influence of the mobile browser address bar; 2. Responsive fonts can be limited with 5vw and combined with clamp (1.5rem, 3vw, 3rem) to limit the minimum and maximum size; 3. Elastic spacing such as width:80vw, margin:5vhauto, padding:2vh3vw, can make the layout adaptable; pay attention to mobile device compatibility, accessibility and fixed width content conflicts, and it is recommended to give priority to using dvh first;

TheCSSfilterpropertyallowsvisualeffectslikeblur,brightness,andgrayscaletobeapplieddirectlytoHTMLelements.1)Usethesyntaxfilter:filter-function(value)toapplyeffects.2)Combinemultiplefilterswithspaceseparation,e.g.,blur(2px)brightness(70%).3)Commonfunct

Use a div with border to quickly create vertical lines, and define styles and heights by setting border-left and height; 2. Use ::before or ::after pseudo-elements to add vertical lines without additional HTML tags, suitable for decorative separation; 3. In Flexbox layout, by setting the width and background color of the divider class, adaptive vertical dividers between elastic containers can be achieved; 4. In CSSGrid, insert vertical lines as independent columns (such as autowidth columns) into grid layout, which is suitable for responsive design; the most appropriate method should be selected according to the specific layout needs to ensure that the structure is simple and easy to maintain.

ThecontainpropertyinCSSimprovesperformancebyisolatinganelement’slayout,paint,orstyle.1.Ittellsthebrowserthatchangesinsidetheelementwon’taffectcontentoutsideit.2.Commonvaluesincludelayout,paint,style,andstrict,whichcontroldifferentaspectsofrenderingco