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

/* Animations */
/* Rainbox-Animation */
@-o-keyframes rainbow {
    0%{background-position:0% 82%}
    50%{background-position:100% 19%}
    100%{background-position:0% 82%}
}
@keyframes rainbow { 
    0%{background-position:0% 82%}
    50%{background-position:100% 19%}
    100%{background-position:0% 82%}
}

@-webkit-keyframes rainbow {
    0%{background-position:0% 82%}
    50%{background-position:100% 19%}
    100%{background-position:0% 82%}
}
@-moz-keyframes rainbow {
    0%{background-position:0% 82%}
    50%{background-position:100% 19%}
    100%{background-position:0% 82%}
}

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

/* Window Styling */
html,body {
    background-color: var(--background);
    color: var(--white);
    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%);
    transition: 0.5s;
}

button:hover {
    color: var(--secondary);
    background: linear-gradient(124deg, #ff2400, #e81d1d, #e8b71d, #e3e81d, #1de840, #1ddde8, #2b1de8, #dd00f3, #dd00f3);
    background-size: 1800% 1800%;
    -webkit-animation: rainbow 18s ease infinite;
    -z-animation: rainbow 18s ease infinite;
    -o-animation: rainbow 18s ease infinite;
    animation: rainbow 18s ease infinite;
}

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

#advancedSettings {
    display: none;
    border: 2px solid var(--secondary);
    border-radius: 4px;
    padding: 0.5em;
    margin-right: 1em; /* FIREFOX ONLY */
}