HTML img attribute questions?

Sh sh shane

New member
Ok, So I've recently started to use my website again. I've designed the whole thing using HTML/CSS (I'm not trained in website design so know nothing about the other languages.)

Anywho, I've got it all up and running looking good but there are two things I dislike and can't work out how to fix.

I have a hyper-linked icon for Twitter and Facebook on the home page, they both open up in a new tab but then when I go back to the home page the image has a dotted border around it.

How do I remove the dotted border? I'm sure I've used a code for it before but completly forgot it. "outline="none"" does not work.

The other question is how do I make the picture change when you hover? For example to a darker version or another picture?

My website is www.shanehiggs.co.uk, it's live and all coding is accesible via rigt-click.

Thanks for looking and thanks in advance for your great answers!
 
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