iconExample

<aura:component >
	
    <p>
    Lightning button with icon (Utility)<lightning:button label="Neutral"  title="Neutral action" iconName="utility:down" onclick="{! c.handleClick }"/>
    </p>
    <p>
    Lightning icon (Custom) <lightning:icon iconName="custom:custom20" size="x-small" alternativeText="Approved" />
    </p>
    <br/>
    <p>
    Lightning icon (Action) <lightning:icon iconName="action:add_file" size="x-small" alternativeText="Approved" />
    </p>
    <br/>
    <p>
    Lightning icon (Doctype) <lightning:icon iconName="doctype:flash" size="x-small" alternativeText="Approved" />
    </p>
    <br/>
    <p>
    Lightning icon (Standard) <lightning:icon iconName="standard:account" size="x-small" alternativeText="Approved" />
    </p>
    <br/>
  	<p>
    Lightning buttonIcon <lightning:buttonIcon iconName="utility:settings" variant="bare" onclick="{! c.handleClick }" alternativeText="Settings" />
    </p>
    
    
</aura:component>