Pixel- Change property

I want to change the image in hero area with another image of bigger size, but i dont want to make it over flow. So i want to change the animation(fadein – fade-out)of the image.
I want to add property of sending email from contact form by button click.

Hey there

thank you for the question and happy new year
this is HTML template, so images here can be changed directly in the files by replacing existing images with your images, so you just need to find images in the files and replace them, they also can be replaced in the code by changing image urls. please note this requires little bit HTML knowledge from you
contact form - this for is only raw form in html files, there is no php part to process submissions, this part is on customers and you have to implement it