About positioning items, best way for me is: element { position: absolute or relative; margin: auto; left: value%; right: value%; bottom: value%; top: value%; } If no value put 0. #CSS

0 with no %

Is something in this that: C ==> HTML C++ ==> CSS #CODE

About thing what will be on TOP at website it's CSS: element { z-index: value; } value = number This is super! #CSS

About priority in CSS it's element { example: something !important; it's about !important if there is other code for this somwhere and need to be rewrited in CUSTOM CSS or something. #CSS

And if this !important dosen't work and it's like this for real sometimes. Then need to input CSS style in HTML tag in way: <div class="mydiv" style="attribute: value; attribute: value;"> And remember to put this ; at the end even for one CSS in HTML style. #HTML and #CSS

About onclick in JavaScript for multiplay functions: <div onclick="func1();func2();">someting</div> Then need to be this ; for each #JavaScript #onclick

For sound when something is pressed: <script> function backspin(url) { var ourAudio = document.createElement('audio'); // Create a audio element using the DOM ourAudio.style.display = "none"; // Hide the audio element ourAudio.src = "https://cdefgahc.com/wav/front.wav"; // Set resource to our URL ourAudio.autoplay = true; // Automatically play sound ourAudio.onended = function() { this.remove(); // Remove when played. }; document.body.appendChild(ourAudio); } </script> For PHP file and with no<script></script> for CUSTOM JavaScript if you have. And I use onclick for that: backspin(); #JavaScript #onclick #sound

Than as you can know we can have both vibration and sound for button. #multifunc with onclick JavaScript.

For vibration I use: var elem = document.getElementsByTagName('a'); for(var i = 0; i < elem.length; i++) { elem[i].addEventListener('click', function(){ navigator.vibrate(100); }, false); } var elem = document.getElementsByTagName('button'); for(var i = 0; i < elem.length; i++) { elem[i].addEventListener('click', function(){ navigator.vibrate(100); }, false); } var elem = document.getElementsByTagName('i'); for(var i = 0; i < elem.length; i++) { elem[i].addEventListener('click', function(){ navigator.vibrate(100); }, false); } var elem = document.getElementsByTagName('img'); for(var i = 0; i < elem.length; i++) { elem[i].addEventListener('click', function(){ navigator.vibrate(100); }, false); } var elem = document.getElementsByTagName('svg'); for(var i = 0; i < elem.length; i++) { elem[i].addEventListener('click', function(){ navigator.vibrate(100); }, false); } function vibrate() { navigator.vibrate(100); } This is AUTO and MANUAL onclick #JavaScript #vibrations #CODE