return-youtube-dislike/Extensions/chrome/popup.css

/* Variables */
:root {
    --background: #111;
    --primary: #ff4444;
    --secondary: #272727;
    --white: #fff;
}

/* Window Styling */
html,body {
    background-color: var(--background);
    color: var(--white);
    min-width: 300px;
    padding: 0.5em;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
}

h1 {
    font-size: 26px;
}

button {
    color: var(--white);
    background: var(--secondary);
    cursor: pointer;
    padding: 5px 16px;
    border: none;
    border-radius: 4px;
    font-weight: 500;
    box-shadow: 0 2px 4px -1px rgb(0 0 0 / 20%), 0 4px 5px 0 rgb(0 0 0 / 14%), 0 1px 10px 0 rgb(0 0 0 / 12%);
}

#advancedToggle {
    margin-top: 1em;
    margin-bottom: 2em;
}

#advancedSettings {
    display: none;
    border: 2px solid var(--secondary);
    border-radius: 4px;
    padding: 0.5em;
}