动画图像将无法恢复原始大小

时间：2015-09-11 08:26:33

标签： jquery html css

Codepen

问题

单击左上角（#een）或中右（#vier）图像将使这些元素具有动画效果：它们将缩小尺寸并移动到左下方。再次单击，它们将移回原始位置，它们的大小将增加。但是当这个动画结束时，这些图像的尺寸只比原始图像（点击前）小一些，约为20px。这怎么可能？*

亲切的问候！

*：看到这种尺寸差异的最佳方法是将光标移动到een的上半部分（左上角图像），然后点击两次

HTML ：

<html lang="en">

<head>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>JFP</title>
    <link rel="stylesheet" href="http://s3.amazonaws.com/codecademy-content/courses/ltp/css/bootstrap.css">
        <link rel="stylesheet" href="/static/main.css" >
    <link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.4.0/css/font-awesome.min.css">
    <script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
    <script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
    <script src="/static/app.js"></script>
</head>

<body>
<div class="jumbo">
    <div class="container">

        <div class="col">
            <div class="col-md-6 text-center">
                <div class="een">
                    <img id="een" src="https://s3.amazonaws.com/codecademy-content/projects/broadway/design.svg" class="img-responsive center-block">
                    <img id="eeneen" src="https://s3.amazonaws.com/codecademy-content/projects/broadway/design.svg" class="img-responsive center-block" class="img-responsive center-block" style="display:none">

                    <div class="texteen text center" style="display:none">
                        <h1>Lorem ipsum</h1>
                    </div>
                </div>
            </div>

            <div class="col-md-6 text-center">
                <div class="twee">
                    <h1>π</h1>
                    <div class="tweetwee" style="display:none">
                        <h2>Lorem ipsum</h2>
                    </div>
                </div>
            </div>

        </div>


        <div class="col">
            <div class="col-md-6">
                <div class="drie">
                    <img id="drie" src="https://s3.amazonaws.com/codecademy-content/projects/broadway/design.svg" class="img-responsive center-block">
                    <div class="driedrie" style="display:none">
                        <h1>Lorem ipsum.</h1>
                    </div>

                </div>
            </div>

            <div class="col-md-6 text-center">
                <div class="vier">
                    <img id="vier" src="https://s3.amazonaws.com/codecademy-content/projects/broadway/design.svg" class="img-responsive center-block">
                    <img id="viervier" src="https://s3.amazonaws.com/codecademy-content/projects/broadway/design.svg" class="img-responsive center-block" class="img-responsive center-block" style="display:none">

                    <div class="textvier text center" style="display:none">
                        <h1>Lorem ipsum.</h1>
                    </div>
                </div>
            </div>

        </div>

    </div>
</div>


<div class="supporting">
    <div class="container">

        <div class="col">
            <h1>..</h1>
            <a href="#">Learn more</a>
        </div>

        <div class="col">
            <img src="https://s3.amazonaws.com/codecademy-content/projects/broadway/develop.svg">
            <h2>Lorem</h2>
            <p></p>
            <a href="#">Learn more</a>
        </div>

        <div class="col">
            <img src="https://s3.amazonaws.com/codecademy-content/projects/broadway/deploy.svg">
            <h2>Ipsum</h2>
            <p></p>
            <a href="#">Learn more</a>
        </div>
    </div>
</div>

<div class="footer">
    <div class="container">
        <p>&copy;</p>
    </div>
</div>

</body>

</html>

CSS ： 

html {}

body:after {
    content: "";
    position: absolute;
    z-index: -1;
    top: 145px;
    bottom: 0;
    left: 50%;
    border-left: 1px dotted #333333;
}

.header {
}

.header i {
    font-size: 30px;
    margin-top: 5px;
}

.header a{
    color: rgb(250,250,250);
    font-size: 30px;
    text-align: center;
}

.header .col-md-10 {
    background-color: rgb(50,50,50);
    width: 85%;
    margin-left:auto;
    margin-right:auto;
    border-bottom-left-radius: 40px;
    border-bottom-right-radius: 40px;
}

.container-fluid {
    max-width: none;
}

jumbo {}

.jumbo .col .een {}

.jumbo .col .een img {}

.jumbo .col .een #een {
    height: 170px;
    width: auto;
    position: relative;
    padding-top: 50px;
    margin-top: 60px;
}

.jumbo .col .een #eeneen {
    height: 250px;
    width: auto;
    padding-top: 20px;
}

.jumbo .col .een .texteen h1 {
    font-size: 14px;
    padding-top: 21px;
    text-align: center;
    width: 350px;
}

.jumbo .col .twee {
    height: 350px;
    margin: 25px;
}

.jumbo .col .twee h1 {
    font-size: 160px;
    position: relative;
    text-align: center;
    vertical-align: middle;
    padding-top: 50px;
    padding-bottom: 20px;
    margin-bottom: 40px;
}

.jumbo .col h2 {
    font-size: 14px;
    padding-bottom: 100px;
}

.jumbo .col .drie {}

.jumbo .col .drie img {
    height: 170px;
    width: auto;
    position: relative;
    padding-top: 50px;
    margin-top: 60px;
}

.jumbo .col .drie h1 {
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    vertical-align: bottom;
    padding: 15px 50px;
    border: 1px solid #333333;
    border-radius: 1500px;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    margin-top: 20px;
}

.jumbo .col .vier {}

.jumbo .col .vier img {}

.jumbo .col .vier #vier {
    height: 170px;
    width: auto;
    position: relative;
    padding-top: 50px;
    margin-top: 60px;
}

.jumbo .col .vier #viervier {
    height: 250px;
    width: auto;
    padding-top: 20px;
}

.jumbo .col .vier .textvier h1 {
    font-size: 14px;
    padding-top: 21px;
    text-align: center;
    width: 350px;
}

.supporting {
    padding-top: 80px;
    padding-bottom: 100px;
}

.supporting .col {
    float: left;
    width: 33%;
    font-family: 'Raleway', sans-serif;
    text-align: center;
    margin-bottom: 24px;
}

.supporting img {
    height: 32px;
    margin-top: 150px;
}

.supporting .col h1 {
    font-size: 35px;
    padding-bottom: 48px;
    margin-top: 190px;
}

.supporting h2 {
    font-weight: 600;
    font-size: 23px;
    text-transform: uppercase;
    padding: 0 50px;
    margin-bottom: 60px;
}

.supporting p {
    font-weight: 400;
    font-size: 14px;
    line-height: 20px;
}

.supporting a {
    font-size: 10px;
    color: #333333;
    font-weight: 600;
    background-color: #fff;
    border: 1px solid #333333;
    padding: 15px 50px;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1.1px;
}

.clearfix {
    clear: both;
}

.footer {
    background-color: #333;
    color: #fff;
    padding: 30px 0;
}

.footer p {
    font-family: 'Raleway', sans-serif;
    text-transform: normal;
    font-size: 11px;
}

@media (max-width: 500px) {
    .main h1 {
        font-size: 50px;
        padding: 0 40px;
    }
    .supporting .col {
        width: 100%;
    }
}

JS ：

var operator = '+=';
var operator1 = '+=';
$(document).ready(function() {
    $(".een").click(function() {
    $("#een").animate({left:operator + '-200',
        bottom:operator + '-330',
        width:operator1 + '-85',
        height:operator1 + '-85',
        marginTop:operator1 + '-145',
        paddingTop:operator1 + '-62',
        });
        if(operator == '+='){operator = '-=';}
        else{operator = '+=';}
        if(operator1 == '+='){operator1 = '-=';}
        else{operator1 = '+=';}
    $("#eeneen").toggle(300);
    $(".texteen").toggle(600);
    });
});

var operator2 = '+=';
$(document).ready(function(){
     $(".twee").click(function() {
     $(".twee").children('h1').animate({top:operator2 + '-60'});
          if(operator2 == '+='){operator2 = '-=';}
          else{operator2 = '+=';}
    $(".tweetwee").fadeToggle(600);
   });
});

var operator3= '+=';
$(document).ready(function(){
    $(".drie").click(function() {
    $("#drie").animate({top:operator3 + '-60'});
        if(operator3 == '+='){operator3 = '-=';}
        else{operator3 = '+=';}
     $(".driedrie").toggle(600);
    });
});


var operator4 = '+=';
var operator5 = '+=';
$(document).ready(function() {
    $(".vier").click(function() {
    $("#vier").animate({left:operator4 + '-200',
         bottom:operator4 + '-330',
         width:operator5 + '-85',
         height:operator5 + '-85',
         marginTop:operator5 + '-145',
         paddingTop:operator5 + '-62',
         });
         if(operator4 == '+='){operator4 = '-=';}
         else{operator4 = '+=';}
         if(operator5 == '+='){operator5 = '-=';}
         else{operator5 = '+=';}
    $("#viervier").toggle(300);
    $(".textvier").toggle(600);
   });
});

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