This is my blog which I have started recently: https://nbhmcsirgate.theindianmathematician.com/
I know a bit of HTML. I was looking for ways to give watermarks in the background of my posts. Using some codes, which I found on the internet, I could do this. Now suddenly there are lots of dots showing up in the background of posts (https://nbhmcsirgate.theindianmathematician.com/2020/04/csir-june-2011-part-c-question-79.html) which makes it hard for the readers to read the content.
I haven't made any changes to the code. Kindly check the code and help me with this. Thank you.