javascript - 重置小部件的所有 CSS 样式

Question

我正在创建一个使用许多自定义样式的 Javascript 小部件。当用户将小部件放在他的页面上时，用户的页面总是会影响小部件的样式。有办法避免这种情况吗？

例如，如果我的小部件中有一个输入框:

<input id="#special-input" />

并且用户具有覆盖输入的样式:

input { width: 500px; }

然后，用户的页面将覆盖输入框的宽度。用户可以通过多种方式更改小部件的样式，我无法解释所有这些方式。例如，对于输入，我必须考虑边框、阴影、宽度、高度等，以及用户可以设置页面样式并影响我的小部件的任何其他方式。

Answer 1

为了回馈我上面的评论，您可以执行以下操作。 (完全未经测试，很快拼凑起来)这使用了 Jquery，但我相信如果您使用另一个库或纯 JS，您可以弄清楚如何修改它。

var allStyles = ["azimuth","background","backgroundAttachment","backgroundColor","backgroundImage","backgroundPosition","backgroundRepeat","border","borderBottom","borderBottomColor","borderBottomStyle","borderBottomWidth","borderCollapse","borderColor","borderLeft","borderLeftColor","borderLeftStyle","borderLeftWidth","borderRight","borderRightColor","borderRightStyle","borderRightWidth","borderSpacing","borderStyle","borderTop","borderTopColor","borderTopStyle","borderTopWidth","borderWidth","bottom","captionSide","clear","clip","color","content","counterIncrement","counterReset","cssFloat","cue","cueAfter","cueBefore","cursor","direction","display","elevation","emptyCells","font","fontFamily","fontSize","fontSizeAdjust","fontStretch","fontStyle","fontVariant","fontWeight","height","left","letterSpacing","lineHeight","listStyle","listStyleImage","listStylePosition","listStyleType","margin","marginBottom","marginLeft","marginRight","marginTop","markerOffset","marks","maxHeight","maxWidth","minHeight","minWidth","orphans","outline","outlineColor","outlineStyle","outlineWidth","overflow","padding","paddingBottom","paddingLeft","paddingRight","paddingTop","page","pageBreakAfter","pageBreakBefore","pageBreakInside","pause","pauseAfter","pauseBefore","pitch","pitchRange","playDuring","position","quotes","richness","right","size","speak","speakHeader","speakNumeral","speakPunctuation","speechRate","stress","tableLayout","textAlign","textDecoration","textIndent","textShadow","textTransform","top","unicodeBidi","verticalAlign","visibility","voiceFamily","volume","whiteSpace","widows","width","wordSpacing","zIndex"];

    $.each(allStyles, function(key, value){
        if ($this.css(value) !== undefined){
            $this.css(key, "")
        }
    });

注意 我上面的帖子是根据这个关于另一个主题的答案修改的。只是想感谢@Matrym ... getComputedStyle (or) $.css(map) <-- to get every style declaration