What is the best way to adjust font size based on div size?

Imagine a div with fixed dimensions that contains text content. If the text is too long, it overflows and "explodes" the div. On the other hand, if the text is too short, the div looks empty.

I think the solution would be to adjust the font size dynamically - make it bigger for short text and smaller for long text.

I have never attempted this before. Can anyone suggest how to achieve this without using jQuery or any other framework, as I am already using Dojo as my JS framework? Thank you in advance.

javascripthtmlcssxhtml

Answer №1

Add a new element within the DIV and insert the desired text.

To determine the percentage value for the css font-size, divide the width of your DIV by the element's size, then multiply by 100.

Adjust the font size on the outer DIV as needed to achieve the perfect fit.

Answer №2

When it comes to finding the right plugins for this task, there are a plethora of options available. One such plugin can be found here.

Answer №3

If you're looking for a simple solution, jQuery might be your best bet. By using the css function, you can adjust the font size of a box based on its height exceeding a specified value. Check out this example I created and tested in Chrome.

$(function() {
    $('.text').each(function() {
       if($(this).height() > 30)
           $(this).css('font-size', '12px');
    }); 
});

Answer №4

To dynamically adjust the font size based on the length of a string in javascript, you can utilize the string.length property to calculate the length of the string. Then, you can use the .css() method in jQuery to set the font size dynamically (check out this guide for more information: jQuery .css method). Alternatively, if you have server-side scripting capabilities, you can set the font size with an inline style before the page loads.

Additionally, if you are using Dojo instead of jQuery, you can still achieve the same result by setting the font size using Dojo methods. This tutorial on DOM manipulation may be helpful: DOM Magic Tutorial.

Answer №5

Using jQuery makes it achievable.

$(document).ready(function() {
var defaultSize = 14;
var containerWidth = $('...').width();
$('...').each(function(){
var elementWidth = $(this).width();
var newFontSize = (containerWidth/elementWidth) * defaultSize;
$(this).css({"font-size" : newFontSize, "line-height" : newFontSize/1.5 + "px"});
});
});

Hopefully this solution proves beneficial! I once posed a similar query but was informed by the moderator that it was off-topic :)

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