Input[type="file"] concept.

index.html

<section class="content">
    <div class="file_input_add_file box_matched">
        <h4>Select file from your hard drive.</h4>
        <fieldset class="add_file">
            <label class="">
                <input type="text" placeholder="the path to your file" class="file_name_field box_matched">
                <span class="file_error_info">you did not select any file</span>
            </label>
        </fieldset>
        <fieldset class="add_file">
            <input type="file" value="select the file" class="add_file_field">
            <span>browse</span>
        </fieldset>
    </div>
</section>

style.css

.content {
    width: 100%;
    margin: 0 auto;
    text-align: center;
}

    .head h1 {
        font-family: 'Tahoma', Verdana, Arial, san-serif;
    }

    .head h4 {
        position: absolute;
        font-size: 40%;
        color: #b0b0b0;
        right: 180px; top: 91px;
        text-shadow: none;
        font-weight: normal;
        display: inline-block;
        font-family: Georgia, Tahoma, Verdana, sans-serif;
    }

.file_input_add_file {
    position: relative;
    width: 100%;
    margin-top: 50px;
    margin-bottom: 150px;
}

    .file_input_add_file h4 {
        font-weight: normal;
    }

.file_input_add_file fieldset {
    border: none;
    display: inline-block;
    position: relative;
    padding: 0; margin: 0;
    margin-top: 10px;
    height: 36px;
    vertical-align: top;
}

    input[type="file"].add_file_field {
        font-size: 20px;
        filter: alpha(opacity=1);
        -moz-opacity: 0.01;
        opacity: 0.01;
        cursor: pointer;
        height: 36px;
        position: absolute;
        right: 0; top: 0;
        z-index: 2;
    }

    .file_input_add_file fieldset span {
        cursor: pointer;
        font-size: 80%;
        padding: 0 10px;
        height: 100%;
        line-height: 36px;
        background-color: black;
        border: none;
        z-index: 1;
        color: white;
        box-shadow: 0 0 20px #B6B6B6;
        display: inline-block;
        vertical-align: bottom;
        margin-top: 1px;
    }

    input[type="text"].file_name_field {
        outline: 0 none;
        border: 1px solid #ccc;
        display: inline-block;
        box-shadow: 0 0 20px #B6B6B6;
        width: 402px; height: 100%;
        padding: 0 8px;
        position: relative;
        z-index: 3;
        font-size: 75%;
        font-family: inherit;
        color: #808080;
        background-color: #f6f3f3;
    }

        input[type="text"].file_name_field {
            overflow: visible;
        }

.add_file label.file_error .file_error_info {
    visibility: visible;
}

.add_file label.file_error input[type="text"].file_name_field {
    border-color: red;
}

    .file_input_add_file fieldset .file_error_info {
        position: absolute;
        font-size: 70%;
        width: auto;
        z-index: 2;
        visibility: hidden;
        height: 20px; line-height: 20px;
        bottom: -20px; right: 0;
        background-color: red;
    }

.file_input_add_file fieldset .file_error_info:before {
    content: "";
    position: absolute;
    left: -16px; top: 0;
    width: 0; height: 0;
    border-style: solid;
    border-width: 0 16px 20px 0;
    border-color: transparent red transparent transparent;
}