How to add quantity subscript to message button in html

This time I will show you how to add a quantity subscript on the message button in HTML. What are the precautions for adding a quantity subscript on the message button in HTML? The following is a practical case, let's take a look.

bf552137c0a82bf6fc5db4a2666592c2Message< ;span id="msgNum" class="ii">454bdf357c58b8a65c66d7c19c8e4d1145db79b134e9f6b82c0b36e0489ee08ed

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(){
                }
            });
    }

I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!

Related reading:

How to use the img tag of HTML images

Detailed explanation of the meta column in the WEB interface of HTML5

How to use html form submission in HTML

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