javascript - 覆盖 CSS 规则

Question

我想在我的 DOM 树中找到具有类名的节点:ui-slider-handle ui-state-default ui-corner-all。当我找到它们时，我想用我的 CSS 覆盖它们的 CSS。但是我无法让我的代码工作:

var p = document.getElementsByClassName("ui-slider-handle ui-state-default ui-corner-all");
        for( var i=0; i<p.length; p++) {
                p[i].style.width = 5 + "px !important";
                p[i].style.height = 5 + "px !important";
            }




<div class="ui-slider ui-widget ui-widget-content ui-corner-all dhSliderDesktop ui-slider-vertical" style="visibility: visible;"><div class="ui-slider-range ui-widget-header ui-slider-range-min" style="height: 100%;"></div><a class="ui-slider-handle ui-state-default ui-corner-all" href="#" style="bottom: 100%;"></a></div>

我的元素创建:

var slider = document.createElement("div");
        $(slider).slider({
            orientation: "vertical",
            range: "min",
        });

        if(isMobile)
          $(slider).slider().addClass("dhSliderMobile");
      else
          $(slider).slider().addClass("dhSliderDesktop");

Answer 1

如果你正在使用 jQuery

var slider = document.createElement("div");
$(slider).slider({
    orientation: "vertical",
    range: "min",
});

var items = $('.ui-slider-handle', slider);
console.log('Test: ', items.length, items)
console.log('HTML: ', slider.html())
$('.ui-slider-handle', slider).each(function(i, v){
    var style = $(this).attr('style');
    style += (style? ';' : '') + 'height: 5px !important; width: 5px !important;'
    $(this).attr('style', style)
})

尝试另一种解决方案

var slider = document.createElement("div");
$(slider).slider({
    orientation: "vertical",
    range: "min",
});

$('.ui-slider-handle', slider).addClass('myoverride');

然后添加css规则

.myoverride {
    height: 5px !important;
    width: 5px !important;
}