Question

我认为我接近于正确但我无法弄清楚当用户将鼠标悬停在其上时如何更改我的提交按钮的颜色，我是非常新的javascript所以任何帮助将非常感谢

这是我的代码：

<html>
    <head>
        <title>JavaScript</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <script>
            function getName(){
            var name;
            name = window.prompt("Enter your name", "");
            greeting = "User Information for " + name;
            var txt=    document.getElementById('txtWelcome');
            txt.innerHTML=greeting;
            }

    function over() {
            document.getElementById("Submit").style.background  = 'Blue';
        }
        function out() {
            document.getElementById("Submit").style.background = 'Yellow';
        }



    </script> 
</head>
<body onload="getName()">
        <form class="basic_form">
            <h1 id="txtWelcome"></h1>

    <p>Please input your login details</p>
            <fieldset>
                <label class="form_labels">Username:</label>
                <input class="form_fields" type="text"  name="username"><br>
                <label class="form_labels">E-Mail:</label>
                <input class="form_fields" type="email" name="email"><br>
                <label class="form_labels">Password:</label>
                <input class="form_fields" type="password" name="password">
                <input class="form_buttons" type="Submit" value="Submit"><br>
            </fieldset>
        </form>
</body>

Answer 1

这是javascript解决方案：

var submitButton = document.getElementById('submit');

submitButton.addEventListener('mouseover', function() {
    this.style.backgroundColor='blue';
});

submitButton.addEventListener('mouseout', function() {
    this.style.backgroundColor='yellow';
});

https://jsfiddle.net/hsxdkkp6/

但为什么不使用css呢？

input[type=submit]:hover {
  background-color: red;
}

https://jsfiddle.net/jkkj8dvt/

Javascript鼠标悬停按钮

1 个答案: