Updated jinja templates and css to better enable product alteration

templates/signup.html

@@ -13,12 +13,18 @@
             <input type="email" id="email" name="email" placeholder="Email Address" required>
         </div>
 
-        <input type="password" id="password" name="password" minlength=8 placeholder="Password" required>
+        <div class="input-form-row">
+            <input type="password" id="password" name="password" minlength=8 placeholder="Password" required>
+        </div>
+
         <label class="checkbox">Signup as a Seller?
             <input type="checkbox" id="seller" name="seller"/>
             <span class="checkmark"></span>
         </label>
-        <input type="submit" id="Sign Up" value="Sign Up">
+
+        <div class="input-form-row">
+            <input type="submit" id="Sign Up" value="Sign Up">
+        </div>
     </form>
     
     <div id="create-account-wrap">