JavaScript fixtures
The code can be run in Violentmonkey extension for Google Chrome, Firefox, Microsoft Edge.
m.piekielni.pl
js
jQuery(function($){
$('header,footer,iframe,.ads,#footer').remove();
$('#mobile-content,.picture').css('max-width', 'none');
$('.pictureWrapper').css('border-bottom', '1px dashed gray');
});
sololearn.com
js
$(document).keypress(function(e) {
if(e.which == 13) { // Enter
$('#textView > button:visible').trigger('click');
}
});