I have a VisualForce page displaying some fields. When these fields have any value other than "none" selected, the users would like to see the field highlighted in some manner. 

Here's what the screen currently looks like:


Here's an example of what I'd like (exactly where the highlighting takes place, whether it's shading or changing font color of whatever is flexible) it to look like:


My VF page code is as follows (note: the page has more elements displayed below the screen shot, but those aren't relevant to the question, so I cut them off to save space on the screen shot):

<apex:page standardController="ACA_Member__c" extensions="reloadACAMember,risk_ControllerExtension">

<style>
   .col1 {width:200px; text-align:right; font-size:.875em; font-weight:bold; color:rgb(74,74,86);}
   .col2 {width:200px; text-align:left;}
   .colp1 {width:100px; text-align:right; font-size:.875em; font-weight:bold; color:rgb(74,74,86);}
   .colp2 {width:100px; text-align:left;}
   .colp3 {width:100px; text-align:left;}
   .colh1 {width:400px; height:25px; text-align:center; background-color:#A9D0F5;}
</style>
   
   
<apex:form >
    <apex:pageBlock mode="edit">
       
        <apex:pageblockButtons >
            <apex:commandButton value="Save" action="{!save}" reRender="updateable, relatedList"/>
        </apex:pageblockButtons>

        <apex:panelGrid columns="2" columnClasses="col1,col2" border="0">
           
            <apex:outputText >Lifestyle Segment</apex:outputText>
            <apex:inputField value="{!ACA_Member__c.Lifestyle_Segment__c}"/>
          
           
            <apex:outputText >Favorable to ?</apex:outputText>
            <apex:inputField value="{!ACA_Member__c.Favorability__c}"/>
           
            <apex:outputText >Engaged in Health Decisions?</apex:outputText>
            <apex:inputField value="{!ACA_Member__c.Health_Decisions__c}"/>
           
            <apex:outputText >Prefers Details or Highlights?</apex:outputText>
            <apex:inputField value="{!ACA_Member__c.Details_Highlights__c}"/>
           
        </apex:panelGrid>
       
        <apex:panelGrid columns="1" columnClasses="colh1" border="0">
            <apex:outputLabel ><b>Provider Information</b></apex:outputLabel> 
        </apex:panelGrid>
       
        <apex:panelGrid columns="3" columnClasses="colp1,colp2,colp3" border="0">
     
            <apex:outputLabel ></apex:outputLabel>  
            <apex:outputLabel ><b>Confirmed</b></apex:outputLabel>
            <apex:outputLabel ><b>Attributed</b></apex:outputLabel>
           
            <apex:outputLabel >Name</apex:outputLabel>
            <apex:inputField value="{!ACA_Member__c.Confirmed_Provider__c}"/>
            <apex:outputField value="{!riskProfile.Attributed_Provider__c}"/>

            <apex:outputLabel >NPI</apex:outputLabel>
            <apex:inputField value="{!ACA_Member__c.Confirmed_NPI__c}"/>
            <apex:outputField value="{!riskProfile.Attributed_NPI__c}"/>
           
        </apex:panelGrid>
         
    <apex:panelGrid columns="2" columnClasses="col1,col2" border="0">
        <apex:outputLabel ></apex:outputLabel>
        <apex:outputLabel ></apex:outputLabel> 
   
            <apex:outputText ><b>Rep Determined Do Not Engage</b></apex:outputText>
            <apex:inputField value="{!ACA_Member__c.DNE__c}"/>
       
    </apex:panelGrid>

       
    </apex:pageBlock>

</apex:form>

</apex:page>

********************************************

One thought I had is that I could use the rendered attribute to display it one way if the value is not null, but another way if it is null. However, when I test this, I cannot the ISBLANK function to return either TRUE or FALSE. Even if this works, it seems like a really clunky, less than ideal solution. But I'm new to this (certified admin, but no developer training), so I'm just trying to figure something out. 

<apex:outputText rendered="ISBLANK({!ACA_Member__c.Lifestyle_Segment__c})>Lifestyle Segment</apex:outputText>
<apex:inputField value="{!ACA_Member__c.Lifestyle_Segment__c}"/>


Anyone have ideas as to how I can accomplish what I need to? Thanks in advance.