Microphone not working in browser(Chrome), they are working fine in Google Talk, I wanted to use mic in a website which asked me to run couple of Java applets..i ran them still i could not use the mic.

can you ask this at Lenovo community?
or learn what version of Android OS you have now.
then go to any android forum on earth or read manuals on it.
but here is where to ask first.
what version of android you run,
the answer will be the Chrome browser rules I bet.
website + chrome browser = larger font.
Android "Nougat" (codenamed N in-development) is the major 7.0 release of the Android operating system. It was first released as a developer preview on March 9, 2016
also what Chrome browser version you run now, can have bearing on hot keys possible in the app.
Chrome browser V72 is NOW.
there are 2 ways, ZOOM or Font size.
I'm guessing font size is your question;

https://forums.lenovo.com/t5/forums/searchpage/tab/message?filter=location&q=tab%204%20,%20users%20manual%20android&location=category:Community-EN&collapse_discussion=true




next I will google for you, are you ready, 1,2,3 go google
lands this.,
If you want to change the font size for most of the websites you visit, you can change the settings of your Google Chrome browser to accommodate. Simply open your browser, click on the three vertical dots on the top right corner and click on "Settings." Scroll down to the bottom and click on "Show Advanced Settings." Under "Web Content," you can customize the set font size, page zoom and font. Note that though most of the websites you visit will appear in your set font size, page zoom and font settings, Google Chrome might not be able to adjust all websites.

and the best of all ?
this (step by step , spoon fed ,examples)
https://www.wikihow.com/Change-the-Default-Zoom-for-the-Android-Browser

Run Google Crome and set it up as default browser. Probably it will ask you if you want it start up next time as default browser - press yes.

Follow these steps to set Google Chrome as your default browser:

1. Click the Chrome menu on the browser toolbar.
2. Select Settings.
3. In the "Default browser" section, click Make Google Chrome my default browser.

Navigate to http://www.google.com/chrome and press the big blue button.
The browser may ask you about what to do with the download. If there is a button "Run", click on it and allow any operations performed by the installer. At the first launch of Google Chrome, you will be asked whether Chrome should be the default web browser. Click on Yes, and there you are.

Sometimes chrome and firefox don't work very well with Java unfortunately.

SOLUTION:
You can install the IETab extension and run the website in IE mode from within chrome.
link: https://chrome.google.com/extensions/detail/hehijbfgiekmjfkfjpbkbammjbdenadd

hope this works out.
good luck

run reginout cleaner to fix registry error of chrome and fix pc problems

Fresh out of Google suppot -

"Download the flash player for windows xpi file - http://fpdownload.macromedia.com/get/flashplayer/xpi/current/flashplayer-win.xpi

"Rename the file to .zip

"Explore the .zip file and you will see a couple files, flashplayer.xpt and NPSWF32.dll, which you have to copy.

"Open another explorer window and go to the plugins folder of your google chrome browser, which might be at -
C/Documents and settings//Local Settings/Application Data/Google/Chrome/Application/Plugins/

"Paste both the files in this plugins folder and then close your Chrome browser and restart it

Those instructions worked fine for me, but I had to make one small change to the advice given there - Vista uses a different folder structure, so I had to paste the two necessary files into C:\Users\{Username}\AppData\Local\Google\Chrome\Application\Plugins

The folder Plugins did not exist when I navigated my way there, so I created it and dropped the two files in, restarted the Chrome browser and ... Voila! Working fine

Other thing I’d say is that my first step was to visit the Chrome Help pages, in particular, http://www.google.com/support/chrome/bin/answer.py?answer=95697&cbid=1798iqe1e7223&src=cb&lev=answer

and installed Java 6 v 10 like they suggested, before doing the Flash business