Question

我在下面的代码中包含一个带有悬浮效果的简单html按钮。我要完成的工作是，当我将鼠标悬停在按钮上时，它将变为透明，带有白色边框。我不知道为什么无论我如何更改我的代码都不起作用。任何帮助将不胜感激。

但是当我反过来做

     body{
            background-color: red;
        }
        .upload-btn-wrapper {
            margin-top: 20px;
            position: relative;
            overflow: hidden;
            display: inline-block;
        }

        .btn {
            color: white;
            border: 1px solid white;
            background-color: black;
            padding: 8px 20px;
            font-size: 20px;
            font-weight: bold;
        }

        .upload-btn-wrapper:hover {
            background-color: transparent;
            border: 1px solid white;
            color: white;
        }

        .upload-btn-wrapper input[type=file] {
            font-size: 100px;
            position: absolute;
            left: 0;
            top: 0;
            opacity: 0;
        }

<!DOCTYPE html>
<html>

<head>
    <meta name="viewport" content="width=device-width, initial-scale=1">

</head>

<body>

    <div class="upload-btn-wrapper">
        <button id="uploadbtn" class="btn">Upload CV!</button>
        <input type="file" name="myfile" />
    </div>

</body>

</html>

Answer 1

这是因为您在.btn上放置了背景，但是在悬停时更改了包装器的背景，而不是按钮本身。将选择器更改为.upload-btn-wrapper:hover .btn

body{
            background-color: red;
        }
        .upload-btn-wrapper {
            margin-top: 20px;
            position: relative;
            overflow: hidden;
            display: inline-block;
        }

        .btn {
            color: white;
            border: 1px solid white;
            background-color: black;
            padding: 8px 20px;
            font-size: 20px;
            font-weight: bold;
        }

        .upload-btn-wrapper:hover .btn {
            background-color: transparent;
            border: 1px solid white;
            color: white;
        }

        .upload-btn-wrapper input[type=file] {
            font-size: 100px;
            position: absolute;
            left: 0;
            top: 0;
            opacity: 0;
        }

<!DOCTYPE html>
<html>

<head>
    <meta name="viewport" content="width=device-width, initial-scale=1">

</head>

<body>

    <div class="upload-btn-wrapper">
        <button id="uploadbtn" class="btn">Upload CV!</button>
        <input type="file" name="myfile" />
    </div>

</body>

</html>

Answer 2

将此添加到您的CSS：

#uploadbtn:hover {
background: transparent;
}

Answer 3

尝试此代码。您可以通过一些动画来完成想要的悬停操作

由于输入type = file而发生。由于我们无法按ID选择该元素，请尝试按标记名称input[type=file]

选择

<!DOCTYPE html>
<html>
<head>
    <style>
    .button {
        width:180px;
        color: white;
        padding: 16px 32px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 16px;
        margin: 4px 2px;
        -webkit-transition-duration: 0.8s;
        transition-duration: 0.8s;
        cursor: pointer;
    }
    .button1 {
        background-color: red; 
        color: black; 
        border: 2px solid red;
    }
    .button2 {
        background-color: green; 
        color: black; 
        border: 2px solid #008CBA;
    }
    .button3 {
        background-color: rgba(0,0,0,0.1); 
        color: black; 
       border: 4px double blue;
           
    }
    .button1:hover {
        background-color: transparent;
        color: red;
    }
    input[type=file]:hover,.button2:hover {
        background-color: transparent;
        color: transparent;'
    }
    .button3:hover {
        background-color:rgba(0,0,0,0.6);
        color: white;
         border:none;
    }
    </style>
</head>
<body>

    <h1>transperant animated button</h1>
    <div>
        <button class="button button1">background hide</button>
        <input type="file" name="myfile" />
    </div>
    <br>
    <button class="button button2">background and text hide</button><br>
    <button class="button button3">border hide with color change </button>

</body>
</html>

Answer 4

使悬停时的背景色继承不透明。例如：

.upload-btn-wrapper:hover .btn {
            background-color: inherit;
            border: 1px solid white;
            color: white;
        }

Answer 5

这是因为您将：hover规则应用于错误的元素

将其更改为

#uploadbtn:hover {
    background-color: transparent;
    border: 1px solid white;
    color: white;
}

加上您的输入[type =“ file”]被重叠在按钮上。添加以下CSS来克服它

.upload-btn-wrapper input[type=file]
{
    z-index : -1;
}
#uploadbtn{
    z-index : 99;
}

按钮悬停不适用于透明

5 个答案: