Template:Spoiler/styles.css

.spoiler-box {
    border: 1px solid #c9a227;
    border-left: 4px solid #4a2545;
    background: #faf6ef;
    border-radius: 4px;
    margin: 1em 0;
    overflow: hidden;
}
.spoiler-header {
    background: #4a2545;
    color: #f5e9d3;
    padding: 0.5em 1em;
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.15em;
    font-weight: 600;
    cursor: pointer;
}
.spoiler-content {
    padding: 1em;
    color: #2e2e2e;
    font-family: 'Source Sans Pro', sans-serif;
    line-height: 1.6;
}
.spoiler-box .mw-collapsible-toggle,
.spoiler-box .mw-collapsible-toggle a,
.spoiler-box .mw-collapsible-toggle a:link,
.spoiler-box .mw-collapsible-toggle a:visited,
.spoiler-box .mw-collapsible-toggle a:active {
    color: #f5e9d3 !important;
    text-decoration: none !important;
    float: right;
}
.spoiler-box .mw-collapsible-toggle a:hover {
    color: #c9a227 !important;
}