使用 svg 背景圖像時如何設置自定義描邊顏色

Question

我是 css 初學者。

在過去的幾個小時里，我一直在努力創建一個切換開關以使用代表當前模式的圖標來切換暗模式。 幸運的是，我設法擁有不同的圖標，具體取決於復選框是否被選中。

現在，剩下的是將圖標描邊設置為根據當前主題（亮/暗）而不同的顏色變量。

我創建了一個codepen https://codepen.io/jam2020/pen/ExEozxw?editors=1100 ，我將內圈的背景顏色設置為紅色以使其有點明顯

 :root { --n: gray; --s: white; --b1: black; --b3: red; --tt-width: 40px; --tt-height: 22px; --tt-border-radius: 11px; --tt-circle-size: calc(var(--tt-height) - 4px); --tt-icon-size: calc(var(--tt-circle-size) - 2px); --tt-light-icon: url('data:image/svg+xml;utf8,<svg class="ThemeTogglerIcon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12,18c-3.3,0-6-2.7-6-6s2.7-6,6-6s6,2.7,6,6S15.3,18,12,18zM12,8c-2.2,0-4,1.8-4,4c0,2.2,1.8,4,4,4c2.2,0,4-1.8,4-4C16,9.8,14.2,8,12,8z" /><path d="M12,4c-0.6,0-1-0.4-1-1V1c0-0.6,0.4-1,1-1s1,0.4,1,1v2C13,3.6,12.6,4,12,4z" /><path d="M12,24c-0.6,0-1-0.4-1-1v-2c0-0.6,0.4-1,1-1s1,0.4,1,1v2C13,23.6,12.6,24,12,24z" /><path d="M5.6,6.6c-0.3,0-0.5-0.1-0.7-0.3L3.5,4.9c-0.4-0.4-0.4-1,0-1.4s1-0.4,1.4,0l1.4,1.4c0.4,0.4,0.4,1,0,1.4C6.2,6.5,5.9,6.6,5.6,6.6z" /><path d="M19.8,20.8c-0.3,0-0.5-0.1-0.7-0.3l-1.4-1.4c-0.4-0.4-0.4-1,0-1.4s1-0.4,1.4,0l1.4,1.4c0.4,0.4,0.4,1,0,1.4C20.3,20.7,20,20.8,19.8,20.8z" /><path d="M3,13H1c-0.6,0-1-0.4-1-1s0.4-1,1-1h2c0.6,0,1,0.4,1,1S3.6,13,3,13z" /><path d="M23,13h-2c-0.6,0-1-0.4-1-1s0.4-1,1-1h2c0.6,0,1,0.4,1,1S23.6,13,23,13z" /><path d="M4.2,20.8c-0.3,0-0.5-0.1-0.7-0.3c-0.4-0.4-0.4-1,0-1.4l1.4-1.4c0.4-0.4,1-0.4,1.4,0s0.4,1,0,1.4l-1.4,1.4C4.7,20.7,4.5,20.8,4.2,20.8z" /><path d="M18.4,6.6c-0.3,0-0.5-0.1-0.7-0.3c-0.4-0.4-0.4-1,0-1.4l1.4-1.4c0.4-0.4,1-0.4,1.4,0s0.4,1,0,1.4l-1.4,1.4C18.9,6.5,18.6,6.6,18.4,6.6z" /></svg>'); --tt-dark-icon: url('data:image/svg+xml;utf8, <svg class="ThemeTogglerIcon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12.1,22c-0.3,0-0.6,0-0.9,0c-5.5-0.5-9.5-5.4-9-10.9c0.4-4.8,4.2-8.6,9-9c0.4,0,0.8,0.2,1,0.5c0.2,0.3,0.2,0.8-0.1,1.1c-2,2.7-1.4,6.4,1.3,8.4c2.1,1.6,5,1.6,7.1,0c0.3-0.2,0.7-0.3,1.1-0.1c0.3,0.2,0.5,0.6,0.5,1c-0.2,2.7-1.5,5.1-3.6,6.8C16.6,21.2,14.4,22,12.1,22zM9.3,4.4c-2.9,1-5,3.6-5.2,6.8c-0.4,4.4,2.8,8.3,7.2,8.7c2.1,0.2,4.2-0.4,5.8-1.8c1.1-0.9,1.9-2.1,2.4-3.4c-2.5,0.9-5.3,0.5-7.5-1.1C9.2,11.4,8.1,7.7,9.3,4.4z" /></svg>'); }.ThemeToggler { width: var(--tt-width); height: var(--tt-height); flex-shrink: 0; border-radius: var(--tt-border-radius); background-color: var(--n); border: 1px solid var(--b1); display: inline-block; cursor: pointer; }.ThemeToggler:hover { border-color: hsl(var(--s)); }.ThemeTogglerInput { display: none; }.ThemeTogglerFill { position: relative; }.ThemeTogglerFill::before { content: ""; position: absolute; top: 1px; left: 1px; height: var(--tt-circle-size); width: var(--tt-circle-size); background: var(--b3); box-shadow: 1px 0px 4px rgba(0, 0, 0, 0.15); border-radius: var(--tt-border-radius); /* icon Configuration */ background-image: var(--tt-light-icon); background-size: auto var(--tt-icon-size); background-repeat: no-repeat; background-position: center; color: red; transition: background-color 0.25s, transform 0.25s; }.ThemeTogglerInput:checked~.ThemeTogglerFill::before { transform: translateX(var(--tt-circle-size)); background-image: var(--tt-dark-icon); }

 <label class="ThemeToggler" for="ThemeTogglerID"> <input id="ThemeTogglerID" class="ThemeTogglerInput" type="checkbox" /> <div class="ThemeTogglerFill" > </div> </label>

我現在的問題是如何在使用 svg 背景圖像時設置自定義筆觸顏色？

提前致謝

Answer 1

由於 svg 是背景圖像，因此您只能真正編輯 svg 代碼以更改筆畫。

如果您想完全通過 css 控制顏色，則需要將 svg 直接嵌入到您的 hmtl 代碼中。 然后你可以像其他任何 html 元素一樣設置它

這是直接 svg-edit 的示例，月亮圖標上的顏色為黃色：

 :root { --n: gray; --s: white; --b1: black; --b3: red; --tt-width: 40px; --tt-height: 22px; --tt-border-radius: 11px; --tt-circle-size: calc(var(--tt-height) - 4px); --tt-icon-size: calc(var(--tt-circle-size) - 2px); --tt-light-icon: url('data:image/svg+xml;utf8,<svg class="ThemeTogglerIcon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12,18c-3.3,0-6-2.7-6-6s2.7-6,6-6s6,2.7,6,6S15.3,18,12,18zM12,8c-2.2,0-4,1.8-4,4c0,2.2,1.8,4,4,4c2.2,0,4-1.8,4-4C16,9.8,14.2,8,12,8z" /><path d="M12,4c-0.6,0-1-0.4-1-1V1c0-0.6,0.4-1,1-1s1,0.4,1,1v2C13,3.6,12.6,4,12,4z" /><path d="M12,24c-0.6,0-1-0.4-1-1v-2c0-0.6,0.4-1,1-1s1,0.4,1,1v2C13,23.6,12.6,24,12,24z" /><path d="M5.6,6.6c-0.3,0-0.5-0.1-0.7-0.3L3.5,4.9c-0.4-0.4-0.4-1,0-1.4s1-0.4,1.4,0l1.4,1.4c0.4,0.4,0.4,1,0,1.4C6.2,6.5,5.9,6.6,5.6,6.6z" /><path d="M19.8,20.8c-0.3,0-0.5-0.1-0.7-0.3l-1.4-1.4c-0.4-0.4-0.4-1,0-1.4s1-0.4,1.4,0l1.4,1.4c0.4,0.4,0.4,1,0,1.4C20.3,20.7,20,20.8,19.8,20.8z" /><path d="M3,13H1c-0.6,0-1-0.4-1-1s0.4-1,1-1h2c0.6,0,1,0.4,1,1S3.6,13,3,13z" /><path d="M23,13h-2c-0.6,0-1-0.4-1-1s0.4-1,1-1h2c0.6,0,1,0.4,1,1S23.6,13,23,13z" /><path d="M4.2,20.8c-0.3,0-0.5-0.1-0.7-0.3c-0.4-0.4-0.4-1,0-1.4l1.4-1.4c0.4-0.4,1-0.4,1.4,0s0.4,1,0,1.4l-1.4,1.4C4.7,20.7,4.5,20.8,4.2,20.8z" /><path d="M18.4,6.6c-0.3,0-0.5-0.1-0.7-0.3c-0.4-0.4-0.4-1,0-1.4l1.4-1.4c0.4-0.4,1-0.4,1.4,0s0.4,1,0,1.4l-1.4,1.4C18.9,6.5,18.6,6.6,18.4,6.6z" /></svg>'); --tt-dark-icon: url('data:image/svg+xml;utf8, <svg class="ThemeTogglerIcon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="yellow" stroke="yellow" d="M12.1,22c-0.3,0-0.6,0-0.9,0c-5.5-0.5-9.5-5.4-9-10.9c0.4-4.8,4.2-8.6,9-9c0.4,0,0.8,0.2,1,0.5c0.2,0.3,0.2,0.8-0.1,1.1c-2,2.7-1.4,6.4,1.3,8.4c2.1,1.6,5,1.6,7.1,0c0.3-0.2,0.7-0.3,1.1-0.1c0.3,0.2,0.5,0.6,0.5,1c-0.2,2.7-1.5,5.1-3.6,6.8C16.6,21.2,14.4,22,12.1,22zM9.3,4.4c-2.9,1-5,3.6-5.2,6.8c-0.4,4.4,2.8,8.3,7.2,8.7c2.1,0.2,4.2-0.4,5.8-1.8c1.1-0.9,1.9-2.1,2.4-3.4c-2.5,0.9-5.3,0.5-7.5-1.1C9.2,11.4,8.1,7.7,9.3,4.4z" /></svg>'); }.ThemeToggler { width: var(--tt-width); height: var(--tt-height); flex-shrink: 0; border-radius: var(--tt-border-radius); background-color: var(--n); border: 1px solid var(--b1); display: inline-block; cursor: pointer; }.ThemeToggler:hover { border-color: hsl(var(--s)); }.ThemeTogglerInput { display: none; }.ThemeTogglerFill { position: relative; }.ThemeTogglerFill::before { content: ""; position: absolute; top: 1px; left: 1px; height: var(--tt-circle-size); width: var(--tt-circle-size); background: var(--b3); box-shadow: 1px 0px 4px rgba(0, 0, 0, 0.15); border-radius: var(--tt-border-radius); /* icon Configuration */ background-image: var(--tt-light-icon); background-size: auto var(--tt-icon-size); background-repeat: no-repeat; background-position: center; color: red; transition: background-color 0.25s, transform 0.25s; }.ThemeTogglerInput:checked~.ThemeTogglerFill::before { transform: translateX(var(--tt-circle-size)); background-image: var(--tt-dark-icon); }

 <label class="ThemeToggler" for="ThemeTogglerID"> <input id="ThemeTogglerID" class="ThemeTogglerInput" type="checkbox" /> <div class="ThemeTogglerFill" > </div> </label>