复习练习（03）jquery Css方法一步步升级

jquery Css方法一步步升级

  <script type="text/javascript">

        //css 方法 一步步升级

        //1.css

       /* $(function () {

            $("input").click(function() {

                $(".shang").css("font-size", "22px");

                $(".shang").css("background-color", "red");

                $(".shang").css("border", "#000 5px solid");

                $(".shang").css("opacity", "0.5");

            });

        });

        */

        //2.css

       /* $(function () {

            $("input").click(function () {

                $(".shang").css("font-size", "22px").css("background-color", "red").css("border", "#000 5px solid").css("opacity", "0.5");

            });

        });

        */

        //3.css

        /* $(function () {

            $("input").click(function () {

                var s =

                {

                    "font-size": "22px",

                    "background-color": "red",

                    "border": "#000 5px solid",

                    "opacity": "0.5"

                }

                $(".shang").css(s);

            });

        });

        */

        //4.css

        $(function () {

            $("input").click(function () {

                $(".shang").css({

                    "font-size": "22px",

                    "background-color": "red",

                    "border": "#000 5px solid",

                    "opacity": "0.5"

                });

            });

        });

//5.css
$(function () {
$("input").click(function ()

{

$(".shang").css({width: function (index, value){ return ((index * 50) + 100) + "px"; },

"height": "100px",

"background-color": "red"

});

});
});

    </script>

</head>

<body>

<input type="button" value="dianji"/>

<div id="shang" class="shang">dddds

    <ul>

        <li>fasl</li>

        <li> sssss<span> span hong1</span></li>

        <li> sssss<span> span hong2</span></li>

    </ul>

</div>

</body>

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复习练习（03）jquery Css方法一步步升级

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