Full Width Container on Mobile Devices.

Hi, I want to have container width 100% on Mobile devices. By default it shows padding/margin on both left and right sides.

This is the page I am referring to: https://www.clichemillennials.com/blog/

I tried this css:
@media only screen and (max-width:800px) {
.container {
min-width:100% !important;
}
}

and also tried to change container padding by: Layout > Container > Content Padding (mobile) > Left and Right = 0;

But still the width is not 100%.