SafariおよびWebKitにて、要素に適用されるCSS colorプロパティの値が変化したにも関わらず、直ちにレンダリング結果に反映されない問題(発生条件不明)を回避:
Workaround for the issue that the rendered result on the latest Safari and WebKit in some cases doesn't reflect the changed CSS color property value that has just been applied to the element:
.YOUR_SELECTOR_FOR_THAT_ELEMENT {
transition: color 1ms linear 0ms;
}