Detailed explanation of the example of implementing the quantity subscript on the message button in HTML

This article mainly introduces the implementation code of adding quantity subscripts on the message button in HTML. Friends who need it can refer to the

html code:

消息4

css code:

/*角标 */
    .ii{
        display: none;
        background: #f00;
        border-radius: 50%;
        width: 20px;
        height: 20px;
        top: 5px;
        right: 0px;
        position: absolute;
        text-align: center;
        color: #FFF;
        z-index: 99999;
    }

js code:

function ajaxa(){
         $.ajax({
                type:"POST",
                dataType : "json",
                async: false,
                url : "${pageContext.request.contextPath}/docinf/sendInform/lookForMsgNum.do",
                data : {},
                success : function(data){
                    if(data !=null){
                        if(parseInt(data)>10){
                            $("#msgNum").show();
                            $("#msgNum").text(parseInt(data));
                        }else if(parseInt(data)> 0){
                            $("#msgNum").show();
                            $("#msgNum").text(parseInt(data));
                        }else{
                            $("#msgNum").hide();
                        }
                    }
                },
                error:function(){
                }
            });
    }

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