在html标签中使用javascript

Question

我有这些代码：

<script type="text/javascript">
var screenWidth = window.screen.width;
var width_sides = (screenWidth - 980) / 2; 
</script>

<div id="not_important" width=""></div>

我想将div的宽度设置为等于javascript tagg中等式的结果。我怎么能这样做？

由于

Answer 1

<div id="not_important" width=""></div>

<script type="text/javascript">
  var screenWidth = window.screen.width;
  var width_sides = (screenWidth - 980) / 2; 
  document.getElementById('not_important').style.width = width_sides;
</script>