The viewport dimensions and media query parameters do not align

Currently working on an HTML/CSS/JS project.

Within my <head> section, there's a viewport <meta> tag:

    <meta name="viewport" content="width=device-width, initial-scale=1" />

Encountering unexpected behavior with two media queries in my CSS file. Using max-width, but changes in UI are occurring at different viewport sizes than intended as explained in the comments below:

/* currently happening between 320px and 561px */
@media only screen and (max-width: 700px) {
  .sidebar {
    border: 1px solid orange;
    width: 100%;
    height: auto;
    position: relative;
    display: flex;
  }

  main {
    margin-left: 0;
  }
}

/* currently taking effect when screen size is <= 320px */
@media only screen and (max-width: 400px) {
  .sidebar {
    border: 1px solid green;
    display: flex;
    flex-direction: column;
    text-align: center;
  }
}

Seeking insight on why this discrepancy is occurring and how to ensure changes align with the intended max-width values of 700px and 400px, respectively?

css

Answer №1

For a more precise approach, consider utilizing the "new CSS media query range syntax" which can be found at the following link: https://css-tricks.com/the-new-css-media-query-range-syntax/

Using this syntax, you can define styles like so:

@media (400px <= width <= 700px) {
  .sidebar {
    border: 1px solid orange;
    width: 100%;
    height: auto;
    position: relative;
    display: flex;
  }

  main {
    margin-left: 0;
  }
}

@media (0px <= width <= 400px) {
  .sidebar {
    border: 1px solid green;
    display: flex;
    flex-direction: column;
    text-align: center;
  }
}

Answer №2

Try removing initial-scale=1:

<meta name="viewport" content="width=device-width" />

By removing this, you hand over the scaling control to the browser, potentially leading to a more precise interpretation of your media queries.

Consider using min-width instead of max-width

/* Apply styles for screens at or above 700px */
@media only screen and (min-width: 701px) {
  /* Styles */
}

/* Apply styles for screens at or above 400px */
@media only screen and (min-width: 401px) {
  /* Styles */
}

It's simpler to think of max-width and min-width as "less than" and "greater than".

We hope you find this information useful!

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