html {
    font-size: 16px;
    color: #333;
    font-family: sans-serif;
}

body {
    margin: 0;
}

h1 {
    margin: 2rem 0;
    font-size: 2rem;
    line-height: 1.125em;
}

article {
    width: 50rem;
    margin: 0 auto 1rem auto;
    font-size: 1.25rem;
    line-height: 1.5em;
}

hr {
    margin: 3rem;
    border-bottom: 0;
    border-top: 1px solid #ccc;
}

footer {
    background: #334;
    padding: 1rem 0;
    font-size: 0.875rem;
}

footer .row {
    width: 50rem;
    margin: 0 auto;
    color: #ccc;
}

footer a {
    color: #aaa;
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.5rem;
        text-align: center;
    }

    article {
        font-size: 1.125rem;
    }

    article, footer .row {
        width: 100%;
        box-sizing: border-box;
        padding: 0 0.75rem;
    }
}

#octicon-icon {
    height: 1.25rem;
    width: 1.25rem;
    padding: 0 0.25rem 0 0.5rem;
    fill: #aaa;
    vertical-align: bottom;
}

.dialog-block {
    margin: 0 -0.75rem;
    padding: 1.5rem 1rem;
    background: #f5fafc;
}

.dialog-line {
    font-size: 0.9rem;
    line-height: 1.325em;
    margin-bottom: 0.75rem;
}

.dialog-line:last-child {
    margin-bottom: 0;
}

.dialog-line .name {
    width: 7rem;
    float: left;
    padding-top: 0.325rem;
    font-weight: 700;
    line-height: 1.1rem;
    color: #8ca8b4;
    text-align: right;
}

.dialog-line .content {
    position: relative;
    padding: 0.337rem 1.5rem;
    margin: 0 5rem 0 8rem;
    border-radius: 0.25rem;
}

.dialog-line .content::before {
    position: absolute;
    display: block;
    content: '';
    left: -0.25rem;
    top: 0.625rem;
    width: 0;
    height: 0;
    border-top: 0.25rem solid transparent;
    border-bottom: 0.25rem solid transparent;

    border-right: 0.25rem solid;
}

.dialog-line.-you .content {
    background: #bfe9f9;
}

.dialog-line.-you .content::before {
    border-right-color: #bfe9f9;
}

.dialog-line.-he .content {
    background: #dcf2fa;
}

.dialog-line.-he .content::before {
    border-right-color: #dcf2fa;
}

.dialog-line .time {
    position: absolute;
    top: 0.325rem;
    right: -5rem;
    color: #8CA8B4;
    font-size: 0.75rem;
}

.dialog-comment {
    color: #8ca8b4;
    font-size: 0.9rem;
    text-align: center;
    margin: 1rem 0
}

@media (max-width: 414px) {
    .dialog-line {
        margin-bottom: 1rem;
    }

    .dialog-line .name {
        width: auto;
        float: none;
        text-align: left;
        padding-top: 0;
    }

    .dialog-line .content {
        margin-left: 0;
        margin-right: 0;
    }

    .dialog-line .content::before {
        display: none;
    }

    .dialog-line .time {
        right: 0;
        top: -1rem;
    }

    .dialog-comment {
        margin-bottom: 0.75rem;
        text-align: left;
    }
}