I would like to modify the form style elements to use something like the rendered html below on all the forms. How can I go about doing that? Many thanks in advance!

    <form action="/form-test.aspx" class="generic-form elements-row" enctype="multipart/form-data" method="post">       
    <ul class="elements-horizontal">

        <li class="row">
            <div class="form-element">
                <label for="FirstName">First Name</label>
                <input data-val="true" data-val-required="The FirstName field is required." id="FirstName" name="FirstName" type="text" value="" />
                <span class="field-validation-valid error" data-valmsg-for="FirstName" data-valmsg-replace="true"></span>   
            </div>
        </li>

        <li class="row">
            <div class="form-element">                  
                <label for="LastName">Last Name</label>
                <input data-val="true" data-val-required="The LastName field is required." id="LastName" name="LastName" type="text" value="" />
                <span class="field-validation-valid error" data-valmsg-for="LastName" data-valmsg-replace="true"></span>    
            </div>
        </li>

        <li class="row">
            <div class="form-element">    
                <label for="Age">Age</label>
                <input data-val="true" data-val-number="The field Age must be a number." data-val-range="Age must be between 1 and 99" data-val-range-max="99" data-val-range-min="1" data-val-required="Age is required" id="Age" name="Age" type="text" value="" />
                <span class="field-validation-valid error" data-valmsg-for="Age" data-valmsg-replace="true"></span> 
            </div>
        </li>


        <li class="row">
            <div class="form-element">
                <label for="City">City</label>
                <input id="City" name="City" type="text" value="" />
                <span class="field-validation-valid error" data-valmsg-for="City" data-valmsg-replace="true"></span>    
            </div>
        </li>


        <li class="row">
            <div class="form-element">
                <button type="submit" name="submit">Submit<span class="ss-check"></span></button>
                <button type="reset" name="reset">Reset<span class="ss-check"></span></button>
            </div>
        </li>

    </ul>   

</form>