需求:點擊“排序”按鈕,生成div遮罩效果,如圖:
html代碼:兩個按鈕
<input type="button" class="button1" value="排序" style="margin-left:30px;" οnclick="showDiv()"/>
<input type="button" class="button2" value="字段" οnclick="showDiv()"/>
html代碼:遮罩效果
<div class="container_div"><!-- 遮罩 -->
<div id="bg"></div>
<div id="show">
排序<hr />
<form action="#" method="post">
<table>
<tr>
<td>狀態:</td>
<td class="zhezhao_value"><select>
<option>發文</option>
<option>收文</option>
</select></td>
</tr>
<tr>
<td>公文類型:</td>
<td class="zhezhao_value"><select>
<option>通知</option>
<option>公告</option>
</select></td>
</tr>
</table>
<div class="btn_div">
<input type="submit" class="submit" value="確定" />
<input type="button" class="concel" value="取消" οnclick="hideDiv()" />
<input type="reset" class="reset" value="清空" />
</div>
</form>
</div>
</div>
其中,id=bg 爲遮罩背景,id=show 爲遮罩顯示內容。
下面是 css 樣式代碼:重點是#bg 寬高設置,和 #show寬高設置,以及position 屬性設置。
#bg{
display: none;
position: absolute;
top: 0%;
left: 0%;
width: 100%;
height: 100%;
background-color: black;
z-index:1001;
-moz-opacity: 0.3;
opacity:.30;
filter: alpha(opacity=30);
}
#show{
display: none;
position: absolute;
top: 25%;
left: 32%;
width: 33%;
height: auto;
padding: 8px;
border: 8px solid #E8E9F7;
background-color: white;
z-index:1002;
overflow: auto;
}
最後是 js代碼:
function showDiv() {
document.getElementById("bg").style.display ="block";
document.getElementById("show").style.display ="block";
}
function hideDiv(){
document.getElementById("bg").style.display ="none";
document.getElementById("show").style.display ="none";
}