.form-hidden {
    display: none;
}

label.uploader {
    display: block;
    width: 60vw;
    max-width: 300px;
    background-color: slateblue;
    border-radius: 2px;
    font-size: 1em;
    line-height: 2.5em;
    text-align: center;
}

label.uploader:hover {
    background-color: cornflowerblue;
}

label.uploader:active {
    background-color: mediumaquamarine;
}

input.inputFile {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    height: 1px; 
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
}