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How to override SLDs styles in Lightning component?
As of Spring’21 you can now use styling hooks as a beta feature to override slds styles from base lightning components: I was able to override the standard styling of a slds class. For example, on a quick action modal there is a class called “slds-modal__container”.
What’s the best way to override CSS styles?
Instead of using !Important, you can try the following: Make better use of the CSS cascade. Use more specific rules. By indicating one or more elements before the element you’ve selected, the rule becomes more specific and gets higher priority.
Can a class override an ID selector in CSS?
Here, the Class selector overrode the ID selector because it was the last used one. An ID selector only takes precedence over a Class selector if they are both used in the same element. Let’s now see how we can make one class override another.
Why does CSS style sheet leak into child component?
CSS styles defined in a parent component don’t leak into a child. In our example, a p style defined in the todoApp.css style sheet doesn’t style the p element in the c-todo-item component, because the styles don’t reach into the shadow tree.
Can a custom CSS class override a SLDs class?
If design tokens don’t work, create a custom CSS class instead of overriding an SLDS one. Create a class instead of targeting a class name you don’t own, since that class name can change. For example, don’t target .slds-input, as it’s part of the base component internal markup.
What are class names for SLDs text sizing?
Text sizing uses class names like .slds-text-body_small and .slds-text-heading_large without a base .slds-text-body or .slds-text-heading class. Though generic .slds-container-* classes exist, sometimes a component has an optional container — but it is specific to that component alone.
In order to make this framework easy to use with other frameworks, we’ve added the .slds- namespace. Rather than using .button, our framework uses .slds-button.