For hero images with only text over the image use Technology-HeroHome container, copy the html code into a notepad and adjust the image/text accordingly.
H1 - Lorem Ipsum Dolor
Open-Sans, 34px, #505759;
H2 - Lorem Ipsum Dolor
Open-Sans, 28px, #505759;
H3 - Lorem Ipsum Dolor
Open-Sans, 20px, bold, #505759;
H4 - Lorem Ipsum Dolor
Open-Sans, 18px, #505759;
H5 - Lorem Ipsum Dolor
Open-Sans, 16px, bold, uppercase, #505759;
H6 - Lorem Ipsum Dolor
Open-Sans, 14px, bold, #505759;
Learn more
For buttons use class="readmore".