I want to replace the InputFile's rectangle with 'attach Icon'. I tried to set the URL of the icon to 'background-image' of InputFile but it had no effect. This only demonstrates how to change the color of InputFile, not exactly what I need.
I think maybe this is what you are looking for.
HTML/Razor code
<div class="file-input-zone">
<InputFile />
</div>
CSS
<style>
.file-input-zone {
display: flex;
align-items: center;
justify-content: center;
background-color: transparent;
color: black;
cursor: pointer;
position: relative;
width: 120px;
height: 120px;
background-image: url('paper-clip.png');
}
.file-input-zone:hover {
background-color: lightblue;
}
.file-input-zone input[type=file] {
position: absolute;
width: 100%;
height: 100%;
opacity: 0;
cursor: pointer;
}
</style>
In the CSS code above, the file paper-clip.png is installed in wwwroot directory.
The button will look like a transparent paper-clip. In the image below, color changes on hover as well.