// Create a function for getting a variable value functionmyFunction_get() { // Get the styles (properties and values) for the root varrs = getComputedStyle(r); // Alert the value of the --blue variable alert("The value of --blue is: "+rs.getPropertyValue('--blue')); ...
variable named --fontsize for the.containerclass. We set its value to 25 pixels. Then we use it in the.containerclass further down. Then, we create a@mediarule that says "When the browser's width is 450px or wider, change the --fontsize variable value of the.containerclass to 50px...
Most CSS variables use a prefix to avoid collisions with your own codebase. This prefix is in addition to the--that’s required on every CSS variable. Customize the prefix via the$prefixSass variable. By default, it’s set tobs-(note the trailing dash). ...
However, variable and not entered into force, the problem is--bgin:rootis declared and assigned a gradual change in the value of red to green, you can use this variable because it is a global variable can be accessed intheme-2modified in—-color2value does not Update—-bgand convert it ...
Any element using the --gutter variable will change its spacing depending on the viewport size. Isn’t that awesome?InheritanceYes, CSS variables do inherit. If a parent has a CSS variable defined within it, then the descendant elements will inherit the same CSS variable. Let’s take the ...
Suppose there is an icon, and its width and height should be equal. I defined the variable--sizefor width and height. .icon { --size: 22px; width: var(--size); height: var(--size); } Now, you only need to change the value of the--sizevariable to simulate the effect ofShift ...
function changeHeight() { var element = document.getElementById("myElement"); element.style.height = "200px"; } 这样,当点击按钮时,元素的高度将被更改为200像素。 对于这个问题,腾讯云没有直接相关的产品或链接。但是,腾讯云提供了云计算基础设施和服务,可以用于部署和托管应用程序,包括前端和后端开发。您...
VariableFallback valueDescription --bs-rows 1 The number of rows in your grid template --bs-columns 12 The number of columns in your grid template --bs-gap 1.5rem The size of the gap between columns (vertical and horizontal) These CSS variables have no default value; instead, they apply...
counter-reset: item-counter;/* like a variable name */ 如果你想为计数器设置一个起始数字,你可以这样做: counter-reset: item-counter5; 2)、counter-increment——用于递增当前计数器。默认情况下,它增加 1 counter-increment: item-counter 如果你想将当前...
VariableValue $background#0054e9 $background-shade#004acd $background-tint#1a65eb $text#444444 $text-darker#1e1e1e $text-lighter#6a6a6a However, because CSS variables can be set at runtime and are more dynamic, it is not currently possible to manipulate them using a simple function. ...