答案 0 :(得分:1)
这是你需要的吗?
#myForm {
position: absolute;
top: 100px; /* wherever you want it */
left: 400px; /* wherever you want it */
}

<div class="container">
<img src="http://placehold.it/800x300">
<div id="myForm">
<form>
<label for="pw">Password</label>
<input name="pw" type="text" />
</form>
</div>
</div>
&#13;