Is it possible to adjust the font size based on the dimensions of the page?

Question

Is it possible to adjust the font size based on the dimensions of the page?

Is there a method to adjust the font-size based on the size of the page? Using percentages as the unit seems to refer to the standard font size (such as 90% of 12px, not 90% of the page itself!). This differs from how most other elements behave.

Is there a way to have the page and fonts 'scale up and down' together? Would using em be the best approach?

Thanks!

html css

Answer 1

Answer №1

Check out the latest CSS units, vh and vw. Their browser support is still lacking.

This feature has been recently added to WebKit:

In browsers that can handle it, 1 vh represents 1% (1/100) of the viewport height, while 1 vw represents 1% (1/100) of the viewport width. Additionally, there are vmin and vmax units, which correspond to the smaller and larger values of the two viewports.

Answer 2

Check out the latest CSS units, vh and vw. Their browser support is still lacking.

This feature has been recently added to WebKit:

In browsers that can handle it, 1 vh represents 1% (1/100) of the viewport height, while 1 vw represents 1% (1/100) of the viewport width. Additionally, there are vmin and vmax units, which correspond to the smaller and larger values of the two viewports.

Answer 3

Answer №2

Unfortunately, you cannot adjust the font size using a percentage that is relative to the page size.

When specifying font size in em, it is in relation to how it would normally appear at 16 point size.

To maintain a consistent scale between text and elements on the page as it resizes, using em can be an effective solution.

This approach ensures that fonts and boxes will resize proportionally to each other, preventing any issues with content overflowing or misaligning.

Answer 4

Unfortunately, you cannot adjust the font size using a percentage that is relative to the page size.

When specifying font size in em, it is in relation to how it would normally appear at 16 point size.

To maintain a consistent scale between text and elements on the page as it resizes, using em can be an effective solution.

This approach ensures that fonts and boxes will resize proportionally to each other, preventing any issues with content overflowing or misaligning.

Answer 5

Answer №3

For a solution to automatically adjust text size to fit the width of the parent element, consider using a helpful jQuery plugin like FitText.

Another option with the same objective is the BigText jQuery plugin, which you can check out in action through this demo link.

Answer 6

For a solution to automatically adjust text size to fit the width of the parent element, consider using a helpful jQuery plugin like FitText.

Another option with the same objective is the BigText jQuery plugin, which you can check out in action through this demo link.

Answer 7

Answer №4

One alternative approach is to implement various css breakpoints in the following manner:

h2 { font-size: 24px; color: purple; }
@media only screen and (max-width: 1000px) {
  h2 { font-size: 22px; color: pink; }
}
@media only screen and (max-width: 900px) {
  h2 { font-size: 20px; color: teal; }
}
@media only screen and (max-width: 800px) {
  h2 { font-size: 18px; color: brown; }
}

http://jsfiddle.net/4TGYe/

Answer 8

One alternative approach is to implement various css breakpoints in the following manner:

h2 { font-size: 24px; color: purple; }
@media only screen and (max-width: 1000px) {
  h2 { font-size: 22px; color: pink; }
}
@media only screen and (max-width: 900px) {
  h2 { font-size: 20px; color: teal; }
}
@media only screen and (max-width: 800px) {
  h2 { font-size: 18px; color: brown; }
}

http://jsfiddle.net/4TGYe/

Answer 9

Answer №5

From my perspective, the range of perceived pixel densities experienced by a website visitor is exceptionally broad. It can vary from viewing content on an HTC One device held 12 inches away with 5600 pixels per radians to watching it on a 50-inch plasma screen running at 480p resolution, which equates to about 950 pixels per radians at a distance of 4 feet.

To put it differently, a 20px font appears nearly six times larger in your field of vision on the plasma screen compared to the latest handset.

The solution I devised involves setting the body font size in absolute pixels as a multiple of the window.screenWidth but limiting it within a specific range. Subsequently, I utilize em's for all font sizes thereafter. By employing em's and using headings appropriately, accessibility should not be an issue.

I implemented this function on the page (or its JavaScript) to adjust the size:

function setFontSize() {
    pagesized = window.innerWidth / 30; // Adjust font size proportionately to page
    pagesized = Math.max(pagesized, 14); // Ensure size is no less than 14 px
    pagesized = Math.min(pagesized, 30); // & Limit to maximum of 30 px
    document.body.style.fontSize = pagesized; // Set default body font size
}

To make this functional, the following code is added to the body tag:

<body onresize="setFontSize()" onload="setFontSize()">

Subsequently, you can structure your CSS (or inline styling) based on % or em units, ensuring that everything scales smoothly within these boundaries.

Alternatively, with JQuery, you could use this code:

$(window).resize(function() {
    pagesized = $(window).innerWidth() / 30; // Adjust font size proportionally to page
    pagesized = Math.max(pagesized, 14); // Ensure size is no less than 14 px
    pagesized = Math.min(pagesized, 30); // & Limit to maximum of 30 px
    $('body').css('font-size', pagesized); // Set default body font size
});

Answer 10

From my perspective, the range of perceived pixel densities experienced by a website visitor is exceptionally broad. It can vary from viewing content on an HTC One device held 12 inches away with 5600 pixels per radians to watching it on a 50-inch plasma screen running at 480p resolution, which equates to about 950 pixels per radians at a distance of 4 feet.

To put it differently, a 20px font appears nearly six times larger in your field of vision on the plasma screen compared to the latest handset.

The solution I devised involves setting the body font size in absolute pixels as a multiple of the window.screenWidth but limiting it within a specific range. Subsequently, I utilize em's for all font sizes thereafter. By employing em's and using headings appropriately, accessibility should not be an issue.

I implemented this function on the page (or its JavaScript) to adjust the size:

function setFontSize() {
    pagesized = window.innerWidth / 30; // Adjust font size proportionately to page
    pagesized = Math.max(pagesized, 14); // Ensure size is no less than 14 px
    pagesized = Math.min(pagesized, 30); // & Limit to maximum of 30 px
    document.body.style.fontSize = pagesized; // Set default body font size
}

To make this functional, the following code is added to the body tag:

<body onresize="setFontSize()" onload="setFontSize()">

Subsequently, you can structure your CSS (or inline styling) based on % or em units, ensuring that everything scales smoothly within these boundaries.

Alternatively, with JQuery, you could use this code:

$(window).resize(function() {
    pagesized = $(window).innerWidth() / 30; // Adjust font size proportionally to page
    pagesized = Math.max(pagesized, 14); // Ensure size is no less than 14 px
    pagesized = Math.min(pagesized, 30); // & Limit to maximum of 30 px
    $('body').css('font-size', pagesized); // Set default body font size
});

Answer 11

Answer №6

Check out this script I created specifically for situations when vw is not supported: https://gist.github.com/2475269

Answer 12

Check out this script I created specifically for situations when vw is not supported: https://gist.github.com/2475269

Answer 13

Answer №7

Using Firefox as an example, the 1em measurement can be utilized to establish font size in relation to the parent's font size. By setting the font-size of the body to a value that correlates with the page size, all fonts under the body using 'em' as the unit will adjust accordingly to the page.

To achieve this, the body's size must be set relative to the page, such as through height: 100% or width if you prefer to link it to the width.

Subsequently, it is necessary to consistently synchronize the body height with the font size, which can be accomplished using 'onResize'.

For more in-depth information, refer to the following link.

Answer 14

Using Firefox as an example, the 1em measurement can be utilized to establish font size in relation to the parent's font size. By setting the font-size of the body to a value that correlates with the page size, all fonts under the body using 'em' as the unit will adjust accordingly to the page.

To achieve this, the body's size must be set relative to the page, such as through height: 100% or width if you prefer to link it to the width.

Subsequently, it is necessary to consistently synchronize the body height with the font size, which can be accomplished using 'onResize'.

For more in-depth information, refer to the following link.

Answer 15

Answer №8

For a consistent font display on all browsers, I suggest utilizing the YUI reset from YUI's website. Next, take a look at the examples provided in YUI Font Size here. These steps will ensure your fonts appear correctly across different platforms.

Answer 16

For a consistent font display on all browsers, I suggest utilizing the YUI reset from YUI's website. Next, take a look at the examples provided in YUI Font Size here. These steps will ensure your fonts appear correctly across different platforms.

Answer 17

Answer №9

Here is a solution for scaling fonts dynamically using jQuery:

jQuery(document).ready(function ($) {

// Dynamic Font Scaling
fontSize = function(){
ww = $('.mainhead').innerWidth(); // Width of the Parent Element
one = ww/100; // 1%
multiplcator = one*31; 
$('.mainhead').css({'font-size': multiplcator+'px'});
}
fontSize();

$(window).resize(function() {
fontSize();
});

});

If you set your font size using this method, it will work perfectly on all browsers.

.mainhead{
width:48%;
font: normal 2em Times, Verdana, sans-serif;
}

Answer 18

Here is a solution for scaling fonts dynamically using jQuery:

jQuery(document).ready(function ($) {

// Dynamic Font Scaling
fontSize = function(){
ww = $('.mainhead').innerWidth(); // Width of the Parent Element
one = ww/100; // 1%
multiplcator = one*31; 
$('.mainhead').css({'font-size': multiplcator+'px'});
}
fontSize();

$(window).resize(function() {
fontSize();
});

});

If you set your font size using this method, it will work perfectly on all browsers.

.mainhead{
width:48%;
font: normal 2em Times, Verdana, sans-serif;
}

Answer 19

Answer №10

Although this question has been answered before, I feel the need to share my solution for future reference. It took me quite some time to figure it out.

Following the advice of user @random: using em as a unit will solve the issue.

If you want your page elements to scale up and down while maintaining a consistent size relative to each other, using em units would be the way to go.

This approach allows fonts and boxes on the page to grow proportionally, preventing any overflow or layout issues.

Start by setting the font-size of your body to 1em, which equals 100%

body {
      font-size: 1em; 
}

Then adjust the font-size of your element as a percentage of its parent's size

.your_element {
 font-size: 0.4em /* for example, 40% of its parent font-size */
}

Next, utilize @media queries for responsive design

@media all and (max-width: 767px) {
  body {
    font-size: 0.4em !important;
  }
}

/* Add more media queries here based on your design requirements */

@media all and (min-width: 4000px) {
  body {
    font-size: 2em !important;
  }
}

And there you have it, wishing you a wonderful day!

Answer 20

Although this question has been answered before, I feel the need to share my solution for future reference. It took me quite some time to figure it out.

Following the advice of user @random: using em as a unit will solve the issue.

If you want your page elements to scale up and down while maintaining a consistent size relative to each other, using em units would be the way to go.

This approach allows fonts and boxes on the page to grow proportionally, preventing any overflow or layout issues.

Start by setting the font-size of your body to 1em, which equals 100%

body {
      font-size: 1em; 
}

Then adjust the font-size of your element as a percentage of its parent's size

.your_element {
 font-size: 0.4em /* for example, 40% of its parent font-size */
}

Next, utilize @media queries for responsive design

@media all and (max-width: 767px) {
  body {
    font-size: 0.4em !important;
  }
}

/* Add more media queries here based on your design requirements */

@media all and (min-width: 4000px) {
  body {
    font-size: 2em !important;
  }
}

And there you have it, wishing you a wonderful day!

Answer 21

Answer №11

Could you clarify what you mean by "relative to the size of the page"? Are you referring to the browser window or the screen size?

If it's the browser window, changing font sizes based on window resizing could lead to unexpected and inconvenient results for users. Most people resize windows to focus on specific sections of a site, not to adjust overall text size. Similarly, optimizing for screen size alone could result in excessively large fonts on larger screens, which may not align with user expectations.

In contrast, using em or similar units provides a more practical approach to creating scalable websites. By scaling relative to a default size based on user readability preferences, the design can adapt effectively to different viewing contexts.

Answer 22

Could you clarify what you mean by "relative to the size of the page"? Are you referring to the browser window or the screen size?

If it's the browser window, changing font sizes based on window resizing could lead to unexpected and inconvenient results for users. Most people resize windows to focus on specific sections of a site, not to adjust overall text size. Similarly, optimizing for screen size alone could result in excessively large fonts on larger screens, which may not align with user expectations.

In contrast, using em or similar units provides a more practical approach to creating scalable websites. By scaling relative to a default size based on user readability preferences, the design can adapt effectively to different viewing contexts.

Is it possible to adjust the font size based on the dimensions of the page?

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Answer №6

Answer №7

Answer №8

Answer №9

Answer №10

Answer №11

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