Base Apparel

I'm a css newbie and I've coded this for a long time... -.-

I don't know whether it is a good idea to embed the hero image of mobile version in the left and switch the images between desktop and mobile version by using the display: none and media query.

Is there a good way to simplify the svg label which looks a little cumbersome ?

I'm not still good at the semantic html labels, such as main section header article etc. There must be some inappropriate labels. Just point it out.. thx~