Question

input和select 用css的一个属性 实现可输入的下拉框 是什么属性来着？

Answer 1

<script language="javascript">
function changeF()
{
document.getElementById('makeupCo').value=
document.getElementById('makeupCoSe').options[document.getElementById('makeupCoSe').selectedIndex].value;
}
</script>

<span style="position:absolute;border:1pt solid #c1c1c1;overflow:hidden;width:188px;
height:19px;clip:rect(-1px 190px 190px 170px);">
<select name="makeupCoSe" id="makeupCoSe" style="width:190px;height:20px;margin:-2px;" onChange="changeF();">
<option id='1' value='java'>java</option>
<option id='2' value='c++'>c++</option>
<option id='3' value='python'>python</option>
<OPTION id="99999" VALUE="" SELECTED>
</select>
</span>
<span style="position:absolute;border-top:1pt solid #c1c1c1;border-left:1pt
solid #c1c1c1;border-bottom:1pt solid #c1c1c1;width:170px;height:19px;">
<input type="text" name="makeupCo" id="makeupCo" value="请选择或输入" style="width:170px;height:15px;border:0pt;">
</span>

Answer 2

<select name="jumpMenu" id="jumpMenu" onchange="MM_jumpMenu('parent',this,0)">
<option>项目1</option>
<option>项目2</option>
<option>项目3</option>
<option>项目4</option>
</select>
望采纳

Answer 3

Vue实践-CSS样式position/display/float属性对比使用