[enter image description here][1]

<form action="#" method="post" id="temp">

    <fieldset>

    <legend>Average Low and High Temperatures</legend>
 <div>
     <label for="lowTemp"> Low Temperature </label>
     <input type="number" name="lowTemp" id="lowTemp" required>
</div>
<div>
     <label for="highTemp"> High Temperature </label>

     <input type="number" name="highTemp" id="highTemp" required>

<div><input type="submit" value="Add temperatures!" id="submit"></div>

    </fieldset>
 </form>