Need help aligning form with CSS - css

Question

Hey I have a very simply question but I am not quite sure how to achieve this without using HTML tables. Basically what I want is the label to to be on the left with 3 radio button to its right. The thing is, I want each individual radio button to be aligned vertically.
For example:
Label - choice 1
..........- choice 2
..........- choice 3
The HTML structure I am using is as follows:
<label for="radio1">Label</label>
<input type="radio" name="radio1"> <span class="form-span">Option 1</span>
<input type="radio" name="radio1"> <span class="form-span">Option 2</span>
<input type="radio" name="radio1"> <span class="form-span">Option 3</span>
Can anyone help me to align the form properly?
Thanks :)
EDIT
I found a very simply solution and was wondering whether is it an acceptable one: could you please tell me if it acceptable according to HTML standards?
<label for="radio1">Label</label>
<span class="form-span"><input type="radio" name="radio1"> <span class="form-label">Option 1</span></span>
<span class="form-span"><input type="radio" name="radio1"> <span class="form-label">Option 2</span></span>
and CSS:
.form-span {display:block}

Answer 1

The easiest way is to wrap everything in a div:
<div class="container">
<label for="radio1">Label</label>
<input type="radio" name="radio1"> <span class="form-span">Option 1</span>
<input type="radio" name="radio1"> <span class="form-span">Option 2</span>
<input type="radio" name="radio1"> <span class="form-span">Option 3</span>
</div>
and then add the following CSS:
.container{height:200px;}
label{float:left; height:100%;}
input{float:left;}
.form-span{display:block;}
Check out this jsFiddle to see a live example.

Answer 2

HTML
<label for="radio1">Label</label>
<div id="parentDiv">
<input type="radio" name="radio1"> <span class="form-span">Option 1</span>
<input type="radio" name="radio1"> <span class="form-span">Option 2</span>
<input type="radio" name="radio1"> <span class="form-span">Option 3</span>
</div>
CSS
#parentDiv, label, input, span {
float:left;
}
input {
clear:both;
margin-left:5px;
}
span {
margin-left:5px;
}
Check it out : http://jsfiddle.net/gNHB7/