dont use % for indent
also your selector is wrong
https://developer.mozilla.org/en-US/docs/Web/CSS/:active
read this, as u can see only while the mouse is held down on the button that is when the css is applied for the :active state
also make sure u use the correct selector
you will need all of these:
nav.laynav .current-menu-item>a,
nav.laynav .current_page_item>a,
nav.laynav .current-menu-parent>a,
nav.laynav .current-menu-ancestor>a{
text-indent:10px !important;
}
also since text indent just moves the text to the right, this css probably only makes sense if your menu is a vertical menu