Template:Message box/styles.css

.mbox {
    display:  flex;
    border: 1px solid var(--wiki-content-border-color);
    padding: 10px;
    background: var(--wiki-content-background-color--secondary);
    border-left: 10px solid var(--wiki-content-border-color);
    margin-bottom: 5px;
    gap: 10px;
}

.mbox + .mbox {
	margin-top: -5px;
}

.mbox .mbox-title {
  color: var(--wiki-accent-color);
  font-weight: 600;
}

.mbox.blue {
    border-left: 10px solid #1e90ff;
}

.mbox.red {
    border-left: 10px solid #b22222;
}

.mbox.orange {
    border-left: 10px solid #f28500;
}

.mbox.yellow {
    border-left: 10px solid #f4c430;
}

.mbox.purple {
    border-left: 10px solid #9932cc;
}

.mbox.gray {
    border-left: 10px solid #bba;
}

.mbox.green {
    border-left: 10px solid #228b22;
}

.theme-dark .mbox {
    background-color: rgba(var(--wiki-content-dynamic-color--rgb),0.05);
}

.theme-dark .mbox .mbox-title {
    color: var(--wiki-content-text-color)
}