How to resize site for mobile using CSS

Hello,

I think you are going to need more than a line of CSS to accomplish what you are needing. The term for what you a referring to is “responsive design.” Here is a more thorough explaination: https://developers.google.com/web/fundamentals/getting-started/your-first-multi-screen-site/responsive?hl=en

If you just want to make images always fit within the available space, you could add this line to you .css file:

img {
   max-width: 100%;
}

I hope this helps. Let me know if you have other questions.

Thank You,

Brad