滚动条样式

.ruleDescriptionFont {
    margin: .2rem 0 .3rem;
    height: 2.8rem;
    overflow: auto;
    color: #666;
}
.ruleDescriptionFont::-webkit-scrollbar {
    -webkit-appearance: none;
}

.ruleDescriptionFont::-webkit-scrollbar:vertical {
    width: 11px;
}

.ruleDescriptionFont::-webkit-scrollbar:horizontal {
    height: 11px;
}

.ruleDescriptionFont::-webkit-scrollbar-thumb {
    border-radius: 8px;
    border: 2px solid white;
    background-color: #eee;
}

image.png