Multiple select box styling inside fieldset without using fieldset - html

Question

I have three select controls and would like them to group inside fieldset like style but without using fieldset. Like in my image,
I have following style to make text field appear like fieldset,
border-radius: 6px;
border: none;
font-weight: bold;
background: none;
box-shadow: none;
border: 2px solid #e4e4e4;
width: 100%;
padding: 25px 5px 5px 10px;
Gives me style like,
Edit:
HTML,
<div id="divPrice" class="margin-all">
<div class="editor-field">
<input data-val="true" data-val-number="The field Price must be a number." data-val-required="The Price field is required." id="Price" maxlength="6" name="Price" type="text" value="20.00" class="hasText input-validation-error" aria-required="true" aria-invalid="true" aria-describedby="Price-error">
<label for="Price">Price</label>
</div>
</div>

Answer 1

Ive created a jsfiddle for you: jsfiddle.net/by6rst01/1/

Answer 2

You can try something like this:
.fieldset {
border: 2px groove threedface;
border-top: none;
padding: 0.5em;
margin: 1em 2px;
}
.fieldset>h1 {
font: 1em normal;
margin: -1em -0.5em 0;
}
.fieldset>h1>span {
float: left;
}
.fieldset>h1:before {
border-top: 2px groove threedface;
content: ' ';
float: left;
margin: 0.5em 2px 0 -1px;
width: 0.75em;
}
.fieldset>h1:after {
border-top: 2px groove threedface;
content: ' ';
display: block;
height: 1.5em;
left: 2px;
margin: 0 1px 0 0;
overflow: hidden;
position: relative;
top: 0.5em;
}
<div class="fieldset">
<h1><span>Must Add By</span></h1>
<select id="cars" name="cars">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="fiat">Fiat</option>
<option value="audi">Audi</option>
</select>
<select id="cars" name="cars">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="fiat">Fiat</option>
<option value="audi">Audi</option>
</select>
<select id="cars" name="cars">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="fiat">Fiat</option>
<option value="audi">Audi</option>
</select>
</div>