Show browser file or input type=file show only button in asp.net or HTML

//CSS

input[type=file] {

position: absolute;

border: solid transparent;

border-width: 0 0 0px 0px;

opacity: 0.0;

filter: alpha(opacity = 0);

}

.filebutton {

position: relative;

cursor: pointer;

text-align: center;

}

.filebutton span {

text-align: center;

padding: 2px 6px 3px;

background: #eac380 -moz-linear-gradient(center top , #eac380 5%, #fae4bd 100%) repeat scroll 0 0;

display: inline-block;

}

// HTML Controls

<label class=" filebutton">

   <span>Add Files</span>

   <input type="file" id="files" name="file"></input>

</label>

// Asp.net Controls

                               <label class="filebutton">

                                  <span>Browse...</span>

                                  <asp:FileUpload ID="FileUpload1" runat="server"/>

                              </label>