options.css

body {
    background-color: lightgrey;
    min-width: 750px;
}

#recommended_description, #changed_description {
    display: none;
}

#hotkey_entry {
    margin-bottom: 0.5em;
}

#hotkey_entry tr:first-child th {
    padding-bottom: 0.5em;
}

th.hotkey, input[name="hotkey"] {
    width: 3em;
}

th.url, input[name="target"], input[name="match_prefix"] {
    width: 25em;
}

th.checkbox {
    /*
     * Allow the th text to occupy space from its neighbors.
     */
    display: inline-block;
    white-space: nowrap;
    width: 2em;
    margin-left: -5em;  /* Hardcoded for the particular th text. */
}

td.checkbox {
    width: 2em;
    text-align: center;
}

.restore {
    display: none;
}

#open_advanced {
    margin-top: 1em;
}

#open_advanced > a {
    color: grey;
    text-decoration: none;
    cursor: pointer;
}

#advanced {
    display: none;
}

#warning {
    display: none;
    color: red;
    font-weight: bold;
}

input.invalid {
    background-color: pink;
}