kitsu.cafe/static/css/message.css

:root {
    --message-accent-border-color: var(--primary-triad-1-color);
}

@media (prefers-color-scheme: light) {
  :root {
    --message-accent-border-color: var(--tertiary-triad-1-color);
  }
}

.bubble {
    position: relative;
    outline: 1px solid var(--border-color);
    border-radius: 4px;
}

.tail:before {
    content: '';
    background-color: var(--background-color);
    display: block;
    position: absolute;
    width: 10px;
    height: 10px;
    border-width: 1px;
    border-color: var(--border-color);
    transform: rotate(45deg);
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
}

.bubble.accent, .bubble.accent .tail.left, .bubble.accent.tail.left::before {
    outline-color: var(--message-accent-border-color);
    border-color: var(--message-accent-border-color);
}

.tail.right:before {
    right: -6px;
    top: 18px;
    border-style: solid solid none none;
}

.tail.left:before {
    left: -6px;
    top: 18px;
    border-style: none none solid solid;
}

.message {
    flex-wrap: nowrap;
    margin-bottom: 1rem;
}

.message .avatar {
    align-self: start;
}

.message .avatar img {
    border-radius: 50%;
    height: 64px;
    width: 64px;
    max-width: initial;
}

.message .content {
    flex-grow: 1;
    padding: 0.25rem 1rem 0.25rem 1rem;
}

.message .content.left {
    margin-left: 1rem;
}

.message .content.right {
    margin-right: 1rem;
}