content.css

:root {
    --chineselearningextension-background-color: #fff;
    --chineselearningextension-font-color: #000;
    --chineselearningextension-button-background-color: #121212;
    --chineselearningextension-button-font-color: #eee;
    --chineselearningextension-border-color: #3333;
    --chineselearningextension-link-color: #0083ff;
    --chineselearningextension-input-background-color: #fff;
    --chineselearningextension-input-border: 1px solid #333;

}

@media (prefers-color-scheme: dark) {
    :root {
        --chineselearningextension-background-color: #121212;
        --chineselearningextension-font-color: #eeee;
        --chineselearningextension-button-background-color: #eee;
        --chineselearningextension-button-font-color: #121212;
        --chineselearningextension-border-color: #9999;
        --chineselearningextension-link-color: #0ff;
        --chineselearningextension-input-background-color: #2e2e2e;
    }
}

.chineselearningextension-definition-pinyin {
    font-weight: bold;
}

.chineselearningextension-definition-number {
    font-weight: bold;
}

.chineselearningextension-definitions {
    font-size: 16px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.chineselearningextension-popover {
    inset: auto;
    background-color: var(--chineselearningextension-background-color);
    color: var(--chineselearningextension-font-color);
    width: 400px;
    padding: 8px;
    border-radius: 12px;
    border: 1px solid #333;
    text-align: left;
    position: absolute;
}

.chineselearningextension-popover-header {
    font-size: 22px;
    font-weight: bold;
    margin: 4px;
    padding: 0;
    color: var(--chineselearningextension-font-color);
    border: 0;
}

.chineselearningextension-button {
    font-size: 14px;
    line-height: 14px;
    font-weight: bold;
    background-color: var(--chineselearningextension-background-color);
    color: var(--chineselearningextension-font-color);
    border: 2px solid var(--chineselearningextension-font-color);
    border-radius: 12px;
    padding: 4px 12px;
    cursor: pointer;
    user-select: none;
}

/* TODO stop this */
.chineselearningextension-button.float-right {
    float: right;
}