JSFiddle - React, Tailwind, and code Playground

by Tamil

HTML

<div id="widnow">
    <div id="title_bar">
        <div id="button">-</div>
    </div>
    <div id="box">
    </div>
</div>

CSS

#widnow{
    width:400px;
    border:solid 1px;
}

#title_bar{
    background: #FEFEFE;
    height: 25px;
    width: 100%;
}
#button{
    border:solid 1px;
    width: 25px;
    height: 23px;
    float:right;
    cursor:pointer;
}
#box{
    height: 250px;
    background: #DFDFDF;
}

JavaScript

$("#button").click(function(){
    if($(this).html() == "-"){
        $(this).html("+");
    }
    else{
        $(this).html(" - ");
    }
    $("#box").slideToggle();
});