CSS-Parallelogramm- und Rautentransformation

*Die folgenden Techniken sind von „CSS Secrets“ abgeleitet, geschrieben von Lea Verou

Parallelogramm

Die Konstruktion eines Parallelogramms kann durch diagonales Ziehen des Rechtecks ​​​​durch das Verformungsattribut von skew() erhalten werden (das von skew verwendete Koordinatensystem hat die X-Achse in Längsrichtung und die Y-Achse in Querrichtung). was dem gemeinsamen Koordinatensystem entgegengesetzt ist).

<span style="color: #0000ff"><!</span><span style="color: #ff00ff">DOCTYPE html</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">html </span><span style="color: #ff0000">lang</span><span style="color: #0000ff">="en"</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">head</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">meta </span><span style="color: #ff0000">charset</span><span style="color: #0000ff">="UTF-8"</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">title</span><span style="color: #0000ff">></span>Title<span style="color: #0000ff"></</span><span style="color: #800000">title</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">style</span><span style="color: #0000ff">></span><span style="background-color: #f5f5f5; color: #800000">
        .location</span><span style="background-color: #f5f5f5; color: #000000">{</span><span style="background-color: #f5f5f5; color: #ff0000">
            position</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> relative</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            top</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 150px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            left</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 150px</span><span style="background-color: #f5f5f5; color: #000000">;</span>
        <span style="background-color: #f5f5f5; color: #000000">}</span><span style="background-color: #f5f5f5; color: #800000">
         .button</span><span style="background-color: #f5f5f5; color: #000000">{</span><span style="background-color: #f5f5f5; color: #ff0000">
             color</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> white</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             background-color</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> #51bfff</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             width</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 120px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             height</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 50px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             line-height</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 50px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             text-align</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> center</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             transform</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> skewX(-45deg)</span><span style="background-color: #f5f5f5; color: #000000">;</span>
         <span style="background-color: #f5f5f5; color: #000000">}</span>
    <span style="color: #0000ff"></</span><span style="color: #800000">style</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">head</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">body</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">div </span><span style="color: #ff0000">class</span><span style="color: #0000ff">="location button"</span><span style="color: #0000ff">></span>click<span style="color: #0000ff"></</span><span style="color: #800000">div</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">body</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">html</span><span style="color: #0000ff">></span>

Aber die Inhaltsschräge ist möglicherweise nicht der Effekt, den wir brauchen. Eine übliche Lösung besteht darin, ein Div in der inneren Ebene zu verschachteln und dann einen Zug in die entgegengesetzte Richtung hinzuzufügenTransformation: SkewX (45 Grad );Aber Leute mit Programmiermystik sagten, sie könnten es nicht akzeptieren.

Eine andere Idee besteht darin, alle Stile auf Pseudoelemente anzuwenden. Dann transformieren Sie das Pseudoelement.

<span style="color: #0000ff"><!</span><span style="color: #ff00ff">DOCTYPE html</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">html </span><span style="color: #ff0000">lang</span><span style="color: #0000ff">="en"</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">head</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">meta </span><span style="color: #ff0000">charset</span><span style="color: #0000ff">="UTF-8"</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">title</span><span style="color: #0000ff">></span>Title<span style="color: #0000ff"></</span><span style="color: #800000">title</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">style</span><span style="color: #0000ff">></span><span style="background-color: #f5f5f5; color: #800000">
        .location</span><span style="background-color: #f5f5f5; color: #000000">{</span><span style="background-color: #f5f5f5; color: #ff0000">
            position</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> relative</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            top</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 150px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            left</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 150px</span><span style="background-color: #f5f5f5; color: #000000">;</span>
        <span style="background-color: #f5f5f5; color: #000000">}</span><span style="background-color: #f5f5f5; color: #800000">
         .button</span><span style="background-color: #f5f5f5; color: #000000">{</span><span style="background-color: #f5f5f5; color: #ff0000">
             width</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 120px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             height</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 50px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             line-height</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 50px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             text-align</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> center</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             color</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> white</span><span style="background-color: #f5f5f5; color: #000000">;</span>
         <span style="background-color: #f5f5f5; color: #000000">}</span><span style="background-color: #f5f5f5; color: #800000">
        .button:before</span><span style="background-color: #f5f5f5; color: #000000">{</span><span style="background-color: #f5f5f5; color: #ff0000">
            content</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> ''</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            position</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> absolute</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            top</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 0</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000"> right</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 0</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000"> bottom</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 0</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000"> left</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 0</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            background-color</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> #51bfff</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            transform</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> skewX(-45deg)</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            z-index</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> -1</span><span style="background-color: #f5f5f5; color: #000000">;</span>
        <span style="background-color: #f5f5f5; color: #000000">}</span>
    <span style="color: #0000ff"></</span><span style="color: #800000">style</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">head</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">body</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">div </span><span style="color: #ff0000">class</span><span style="color: #0000ff">="location button"</span><span style="color: #0000ff">></span>click<span style="color: #0000ff"></</span><span style="color: #800000">div</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">body</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">html</span><span style="color: #0000ff">></span>

Dadurch wird nicht nur das Problem verzerrter Inhalte gelöst, sondern die HTML-Struktur ist auch immer noch so sauber wie zuvor. Bitte beachten Sie jedoch, dass das vom Pseudoelement generierte Muster den Inhalt überlappt. Sobald ein Hintergrund festgelegt ist, deckt dieser den Inhalt ab, sodass z-index: -1 hinzugefügt werden muss.

Rhombusbild

Wenn es auf einem Quadrat basiert, ist die Raute ein um 45 Grad gedrehtes Quadratmuster. Wir können uns leicht vorstellen, das äußere Div um 45 Grad zu drehen und dann das innere Bild um 45 Grad in die entgegengesetzte Richtung zu drehen. Das folgende Muster wird erhalten.

<span style="color: #0000ff"><!</span><span style="color: #ff00ff">DOCTYPE html</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">html </span><span style="color: #ff0000">lang</span><span style="color: #0000ff">="en"</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">head</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">meta </span><span style="color: #ff0000">charset</span><span style="color: #0000ff">="UTF-8"</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">title</span><span style="color: #0000ff">></span>Title<span style="color: #0000ff"></</span><span style="color: #800000">title</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">style</span><span style="color: #0000ff">></span><span style="background-color: #f5f5f5; color: #800000">
        .location</span><span style="background-color: #f5f5f5; color: #000000">{</span><span style="background-color: #f5f5f5; color: #ff0000">
            position</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> relative</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            top</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 150px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            left</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 150px</span><span style="background-color: #f5f5f5; color: #000000">;</span>
        <span style="background-color: #f5f5f5; color: #000000">}</span><span style="background-color: #f5f5f5; color: #800000">
         .picture</span><span style="background-color: #f5f5f5; color: #000000">{</span><span style="background-color: #f5f5f5; color: #ff0000">
             width</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 600px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             transform</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> rotate(45deg)</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
             overflow</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> hidden</span><span style="background-color: #f5f5f5; color: #000000">;</span>
         <span style="background-color: #f5f5f5; color: #000000">}</span><span style="background-color: #f5f5f5; color: #800000">
        .picture>img</span><span style="background-color: #f5f5f5; color: #000000">{</span><span style="background-color: #f5f5f5; color: #ff0000">
            max-width</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 100%</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            transform</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> rotate(-45deg)</span><span style="background-color: #f5f5f5; color: #000000">;</span>
        <span style="background-color: #f5f5f5; color: #000000">}</span>
    <span style="color: #0000ff"></</span><span style="color: #800000">style</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">head</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">body</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">div </span><span style="color: #ff0000">class</span><span style="color: #0000ff">="location picture"</span><span style="color: #0000ff">><</span><span style="color: #800000">img </span><span style="color: #ff0000">src</span><span style="color: #0000ff">="1.jpeg"</span><span style="color: #0000ff">></</span><span style="color: #800000">div</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">body</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">html</span><span style="color: #0000ff">></span>

Es ist ein ziemlich normales Achteck. Wenn Sie den Produktmanager überzeugen können, ist die Arbeit erledigt. Nun, ich schätze, Sie können nicht überzeugt werden. . .

Da die Rotationsrichtung hier inkonsistent ist, fängt das äußere Div den überschüssigen Teil ab (beachten Sie den Überlauf: versteckt) und dann ist ein Teil davon leer. Solange der leere Teil ausgefüllt ist, wird es eine Raute sein. Hier können Sie eine Skizze zeichnen und den Satz des Pythagoras zur Berechnung verwenden.

Das berechnete Ergebnis ist, dass es um das 1,42-fache vergrößert und vollständig gefüllt ist. Wir haben das Transformationsattribut in img geändert in transform: rotate(45deg) scale(1.42); Erhalten Sie das folgende Bild:

　

　Dieses Schema zum Konstruieren eines Diamanten weist einen Fehler auf: Wenn das Originalbild nicht quadratisch ist, muss ein größerer Vergrößerungsfaktor verwendet werden, und der aufgenommene Bildinhalt wird eingeschränkter.

Und der Plan selbst ist nicht einfach und elegant. Hier stellen wir Ihnen ein Attribut clip-path (leider scheint die Unterstützung nicht gut zu sein) vor, das das Bild durch Übergabe eines festen Positionspunkts in jedes Polygon schneiden kann.

　

<span style="color: #0000ff"><!</span><span style="color: #ff00ff">DOCTYPE html</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">html </span><span style="color: #ff0000">lang</span><span style="color: #0000ff">="en"</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">head</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">meta </span><span style="color: #ff0000">charset</span><span style="color: #0000ff">="UTF-8"</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">title</span><span style="color: #0000ff">></span>Title<span style="color: #0000ff"></</span><span style="color: #800000">title</span><span style="color: #0000ff">></span>
    <span style="color: #0000ff"><</span><span style="color: #800000">style</span><span style="color: #0000ff">></span><span style="background-color: #f5f5f5; color: #800000">
        .location</span><span style="background-color: #f5f5f5; color: #000000">{</span><span style="background-color: #f5f5f5; color: #ff0000">
            position</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> relative</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            top</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 150px</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            left</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 150px</span><span style="background-color: #f5f5f5; color: #000000">;</span>
        <span style="background-color: #f5f5f5; color: #000000">}</span><span style="background-color: #f5f5f5; color: #800000">
        .picture</span><span style="background-color: #f5f5f5; color: #000000">{</span><span style="background-color: #f5f5f5; color: #ff0000">
            -webkit-clip-path</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> polygon(50% 0, 100% 50%, 50% 100%, 0 50%)</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            -moz-clip-path</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> polygon(50% 0, 100% 50%, 50% 100%, 0 50%)</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            clip-path</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> polygon(50% 0, 100% 50%, 50% 100%, 0 50%)</span><span style="background-color: #f5f5f5; color: #000000">;</span><span style="background-color: #f5f5f5; color: #ff0000">
            transition</span><span style="background-color: #f5f5f5; color: #000000">:</span><span style="background-color: #f5f5f5; color: #0000ff"> 1s clip-path</span><span style="background-color: #f5f5f5; color: #000000">;</span>
        <span style="background-color: #f5f5f5; color: #000000">}</span>

    <span style="color: #0000ff"></</span><span style="color: #800000">style</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">head</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">body</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"><</span><span style="color: #800000">img </span><span style="color: #ff0000">class</span><span style="color: #0000ff">="location picture"</span><span style="color: #ff0000"> src</span><span style="color: #0000ff">="1.jpeg"</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">body</span><span style="color: #0000ff">></span>
<span style="color: #0000ff"></</span><span style="color: #800000">html</span><span style="color: #0000ff">></span>

Ich hoffe, dass das Clip-Pfad-Attribut in naher Zukunft in verschiedenen Browsern besser unterstützt wird.