Some pages not responsive

I am having issues with responsive pages. I have some like these two, that work just fine on mobile.

But others are not resizing for mobile.

I am really just at a loss. I already disabled all plugins and that did not change anything.

Hello there,

The below additional CSS code in the child theme overrides the main theme’s style and break the responsiveness.

.content-area {
   width: 810px;
   float: left;

To prevent this issue to happen, you should add the below code:

  max-width: 100% !important;