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::selection CSS pseudo-elementDiese Funktion ist nicht Baseline, da sie in einigen der am weitesten verbreiteten Browser nicht funktioniert.
Want more browser support for this feature? Tell us why.
Das ::selection-CSS-Pseudoelement wendet Stile auf den Teil eines Dokuments an, der vom Benutzer hervorgehoben wurde (z. B. durch Klicken und Ziehen der Maus ber den Text).
Das ::selection-Pseudoelement folgt einem speziellen Vererbungsmodell, das fr alle Hervorhebungs-Pseudoelemente gilt. Fr weitere Details, wie diese Vererbung funktioniert, siehe den Abschnitt zur Hervorhebungs-Pseudoelement-Vererbung.
p::selection {
color: red;
background-color: yellow;
}
<p>
Select a fragment of this paragraph, to see how its appearance is affected.
</p>
Nur bestimmte CSS-Eigenschaften knnen mit ::selection verwendet werden:
colorbackground-colortext-decoration und die zugehrigen Eigenschaftentext-shadow-webkit-text-stroke-color, -webkit-text-fill-color und -webkit-text-stroke-widthInsbesondere wird background-image ignoriert.
::selection {
/* ... */
}
berschreiben Sie nicht die Stile des ausgewhlten Texts aus rein sthetischen Grnden Benutzer knnen diese an ihre Bedrfnisse anpassen. Fr Menschen mit kognitiven Schwierigkeiten oder weniger technologischem Verstndnis knnen unerwartete nderungen der Auswahlstile das Verstndnis der Funktionalitt beeintrchtigen.
Wenn sie berschrieben werden, ist es wichtig sicherzustellen, dass das Kontrastverhltnis zwischen den Text- und Hintergrundfarben der Auswahl hoch genug ist, damit Menschen mit Sehbehinderungen es lesen knnen.
Das Farbkontrastverhltnis wird durch Vergleich der Leuchtkraft des ausgewhlten Textes und der Hintergrundfarben des ausgewhlten Textes ermittelt. Um die aktuellen Web Content Accessibility Guidelines (WCAG) zu erfllen, muss textueller Inhalt ein Kontrastverhltnis von 4.5:1 aufweisen oder 3:1 fr greren Text wie berschriften. (WCAG definiert groen Text als zwischen 18.66px und 24px und fett, oder 24px oder grer.)
This text has special styles when you highlight it.
<p>Also try selecting text in this paragraph.</p>
::-moz-selection {
color: gold;
background-color: red;
}
p::-moz-selection {
color: white;
background-color: blue;
}
/* Make selected text gold on a red background */
::selection {
color: gold;
background-color: red;
}
/* Make selected text in a paragraph white on a blue background */
p::selection {
color: white;
background-color: blue;
}
| Spezifikation |
|---|
| CSS Pseudo-Elements Module Level 4 # selectordef-selection |
pointer-events - steuern, welche Ereignisse auf dem Element aktiv sind-webkit-border-before-webkit-box-reflect-webkit-mask-box-image-webkit-mask-composite-webkit-mask-position-x-webkit-mask-position-y-webkit-mask-repeat-x-webkit-mask-repeat-y-webkit-tap-highlight-color-webkit-text-fill-color-webkit-text-security-webkit-text-stroke-webkit-text-stroke-color-webkit-text-stroke-width-webkit-touch-calloutCustom properties (--*): CSS 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