.content-card
    background-color var(--bg-content-color)
    max-width var(--content-width)
    margin 0 auto
    transition background-color .6s
    padding var(--space)
    border-radius $radius_main
    -webkit-box-shadow 1px 1px 5px 0 rgba(0,0,0,0.02), 1px 1px 15px 0 rgba(0,0,0,0.03)
    box-shadow 1px 1px 5px 0 rgba(0,0,0,0.02), 1px 1px 15px 0 rgba(0,0,0,0.03)
    -webkit-transition background-color 0.3s, -webkit-transform 0.3s, -webkit-box-shadow 0.6s
    transition background-color 0.3s, -webkit-transform 0.3s, -webkit-box-shadow 0.6s
    -o-transition transform 0.3s, background-color 0.3s, box-shadow 0.6s
    transition transform 0.3s, background-color 0.3s, box-shadow 0.6s
    transition transform 0.3s, background-color 0.3s, box-shadow 0.6s, -webkit-transform 0.3s, -webkit-box-shadow 0.6s

    &>:first-child
        margin-top 0

    &>:last-child
        margin-bottom 0

.MathJax
    overflow-x auto
    overflow-y hidden

.separate-dot:after
    content ' · '