css增加新消息小红点样式

javascripttypescripthtmlcssshellpythongolangjavacc++c#phprubyswiftkotlinscalarustdartelixirhaskellluaperlrsql

<span class="span">
  发现
  <i class="tip"></i>
</span>

javascripttypescripthtmlcssshellpythongolangjavacc++c#phprubyswiftkotlinscalarustdartelixirhaskellluaperlrsql

.span {
	position:relative;
	padding:5px;
}
.tip {
	display:block;
	background:#f00;
	border-radius:50%;
	width:8px;
	height:8px;
	top:0px;
	right:0px;
	position:absolute;
}