.section-buttons > a {
    display: inline-block;
    color: white;
    margin: 0.5em 0.2em;
    background-color: darkslategray;
    padding: 0.75em 0;
    opacity: 0.5;
}

.section-buttons > a:hover, .section-buttons > a[active]:hover {
    opacity: 0.8;
    text-decoration: none;
}

.section-buttons > a[data-name="blog"] {
    background-color: purple;
}
.section-buttons > a[data-name="wenku8"] {
    background-color: royalblue;
}
.section-buttons > a > span {
    padding: 0.75em 0.5em;
}
.section-buttons > a[active] {
    opacity: 1;
}
.section-buttons > a > .count {
    background-color: rgba( 0, 0, 0, 0.3 );
}