const oldMain=document.querySelector('[role="main"]');const content=document.querySelector('#content');if(oldMain!==null&&content!==null){oldMain.removeAttribute('role');content.setAttribute('role','main');}
const aside=document.querySelector('.aside');if(aside!==null){aside.setAttribute('role','complementary');}
document.querySelector('body').insertAdjacentHTML('afterBegin','<a class="button" id="skipnav" href="#content">Skip to Main Content</a>');