const html = document.querySelector('html'); const focoBt = document.querySelector('.app__card-button--foco'); const curtoBt = document.querySelector('.app__card-button--curto'); const longoBt = document.querySelector('.app__card-button--longo');
focoBt.addEventListener('click', () => { html.setAttribute('data-contexto', 'foco'); }
curtoBt.addEventListener('click', () => { html.setAttribute('data-contexto', 'descanso-curto'); }
longoBt.addEventListener('click', () => { html.setAttribute('data-contexto', 'descanso-longo'); }
