<iframe width="<?php echo $v_width?>" height="<?php echo $v_height?>"

이렇게 되어있는데 이건 어떻게 조절해야하나요? 전 화면에 width값을 100%로 정해주고싶은데

<?php if($view[wr_1]){ ?>
  <div style="margin:0 0 10px 0;">
   <iframe width="<?php echo $v_width?>" height="<?php echo $v_height?>" src="http://www.youtube.com/embed/<?php echo $view[wr_1]?>?feature=player_embedded" frameborder="0" allowfullscreen></iframe>
  </div>
  <?php } ?>

  <!-- vimeo -->
  <?php if($view[wr_2]){ ?>
  <div style="margin:0 0 10px 0;">
   <iframe src="//player.vimeo.com/video/<?php echo $view[wr_2]?>" width="<?php echo $v_width?>" height="<?php echo $v_height?>" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
  </div>
  <?php } ?>

  <!-- source code -->
  <?php if($view[wr_3]){ ?>
   <?php echo $view['wr_3']; ?>
  <?php } ?>

  <!-- 링크 동영상 video-js로 실행 -->
  <?php
  if($view[wr_4]){
   if ($view[file][0][file]) {  // 첨부파일1(썸네일이미지) 있는 경우
    $v_logo = G5_URL."/data/file/".$bo_table."/".$view[file][0][file];
   } else {
    $v_logo = $board_skin_url."/video-js/logo.jpg";
   }
  ?>
   <video id="video_link" class="video-js vjs-default-skin" controls preload="none" width="<?php echo $v_width?>" height="<?php echo $v_height?>" poster="<?php echo $v_logo?>" data-setup="{}">
   <source src="<?php echo $view['wr_4']?>" type='video/mp4' />
   </video>
  <?php } ?>

  <!-- 업로드 동영상 video-js로 실행 -->
  <?php
  if($view[file][1][file]){
   if ($view[file][0][file]) {  // 첨부파일1(썸네일이미지) 있는 경우
    $v_logo = G5_URL."/data/file/".$bo_table."/".$view[file][0][file];
   } else {
    $v_logo = $board_skin_url."/video-js/logo.jpg";
   }
  ?>
   <video id="video_upload" class="video-js vjs-default-skin" controls preload="none" width="<?php echo $v_width?>" height="<?php echo $v_height?>" poster="<?php echo $v_logo?>" data-setup="{}">
   <source src="<?=G5_URL."/data/file/".$bo_table."/".$view[file][1][file]?>" type='video/mp4' />
   </video>
  <?php } ?>