Saul HTML Pro sets custom opacity classes in src/sass/components/helpers/_opacity.scss and through a SASS variable 
        $opacity-values defined in src/sass/components/_variables.scss to provide additional opacity utility classes to cover its own design system.
    
    
 
    
     
   
    
    
        Use the .opacity-{ 0, 5, 10, 15 ,20, 25, 50, 75, 100 } class to set an element's opacity style.
    
    
    
    
        
            
                                                        
                        .opacity-0                    
                                                        
                        .opacity-5                    
                                                        
                        .opacity-10                    
                                                        
                        .opacity-15                    
                                                        
                        .opacity-20                    
                                                        
                        .opacity-25                    
                                                        
                        .opacity-50                    
                                                        
                        .opacity-75                    
                                                        
                        .opacity-100                    
                             
         
     
    
    
    
          copy     <div class="opacity-0"></div>
<div class="opacity-5"></div>
<div class="opacity-10"></div>
<div class="opacity-15"></div>
<div class="opacity-20"></div>
<div class="opacity-25"></div>
<div class="opacity-50"></div>
<div class="opacity-75"></div>
<div class="opacity-100"></div>      
    
 
    
     
    
    
    
        Use .opacity-{ 0, 5, 10, 15 ,20, 25, 50, 75, 100 }-hover to display an element's opacity on hover.
    
    
    
    
        
            
                                                        
                        .opacity-0-hover
                    
                                                        
                        .opacity-5-hover
                    
                                                        
                        .opacity-10-hover
                    
                                                        
                        .opacity-15-hover
                    
                                                        
                        .opacity-20-hover
                    
                                                        
                        .opacity-25-hover
                    
                                                        
                        .opacity-50-hover
                    
                                                        
                        .opacity-75-hover
                    
                                                        
                        .opacity-100-hover
                    
                             
         
     
    
    
    
          copy     <div class="opacity-0-hover"></div>
<div class="opacity-5-hover"></div>
<div class="opacity-10-hover"></div>
<div class="opacity-15-hover"></div>
<div class="opacity-20-hover"></div>
<div class="opacity-25-hover"></div>
<div class="opacity-50-hover"></div>
<div class="opacity-75-hover"></div>
<div class="opacity-100-hover"></div>      
    
 
    
     
   
    
    
        Use .opacity-active-{ 0, 5, 10, 15 ,20, 25, 50, 75, 100 } to set an element's opacity on active states. Click on the demo below to trigger the active state.
    
    
    
    
        
            
                                                        
                        .opacity-active-0                    
                                                        
                        .opacity-active-5                    
                                                        
                        .opacity-active-10                    
                                                        
                        .opacity-active-15                    
                                                        
                        .opacity-active-20                    
                                                        
                        .opacity-active-25                    
                                                        
                        .opacity-active-50                    
                                                        
                        .opacity-active-75                    
                                                        
                        .opacity-active-100                    
                             
         
     
    
    
    
          copy     <div class="opacity-active-0"></div>
<div class="opacity-active-5"></div>
<div class="opacity-active-10"></div>
<div class="opacity-active-15"></div>
<div class="opacity-active-20"></div>
<div class="opacity-active-25"></div>
<div class="opacity-active-50"></div>
<div class="opacity-active-75"></div>
<div class="opacity-active-100"></div>      
    
 
    
     
    
    
    
        Use .opacity-state-{ 0, 5, 10, 15 ,20, 25, 50, 75, 100 } to set an element's opacity on both active and hover states. Click on the demo below to trigger the active state.
    
    
    
    
        
            
                                                        
                        .opacity-state-0                    
                                                        
                        .opacity-state-5                    
                                                        
                        .opacity-state-10                    
                                                        
                        .opacity-state-15                    
                                                        
                        .opacity-state-20                    
                                                        
                        .opacity-state-25                    
                                                        
                        .opacity-state-50                    
                                                        
                        .opacity-state-75                    
                                                        
                        .opacity-state-100                    
                             
         
     
    
    
    
          copy     <div class="opacity-state-0"></div>
<div class="opacity-state-5"></div>
<div class="opacity-state-10"></div>
<div class="opacity-state-15"></div>
<div class="opacity-state-20"></div>
<div class="opacity-state-25"></div>
<div class="opacity-state-50"></div>
<div class="opacity-state-75"></div>
<div class="opacity-state-100"></div>