Modify the color of the title in a bootstrap vue tab

Utilizing bootstrap-vue.js, I created a tab that looks like this: https://i.sstatic.net/EW76k.png

The default color of the tab title doesn't fit with my project theme, so I attempted to change it. I found information on how to modify the tab title in the official documentation at . Following the instructions, I modified my code as follows:

<b-tab title="Transaction History" title-item-class="tab-title-class">

Here is the CSS style I used:

.tab-title-class {
    color: #FF0000 !important;  
}

Unfortunately, the changes did not take effect. Can you help me troubleshoot this issue? Thank you.

javascriptvue.js

Answer №1

To add a custom class using the v-bind directive, be sure to use quotes to indicate it's a string:

<b-tab title="Transaction History" :title-item-class="'tab-title-class'">

The :title-item-class is simply another way of writing v-bind:title-item-class

This distinction exists because Bootstrap Vue utilizes props rather than basic HTML attributes. For instance, title can just be used as an HTML attribute without requiring v-bind.

In this scenario, it appears that applying :title-link-class is necessary since it involves a link tag.

<b-tab title="Transaction History" :title-link-class="'tab-title-class'">

When using v-bind, the input types are checked. If undefined, an error may occur. In this case, even though the class is not defined in the data option, providing a string for the CSS class will suffice.

Answer №2

It appears that a colon is needed before title-item-class. A possible solution could be attempting: 

<b-tab title="Transaction History" :title-item-class="tab-title-class">

Answer №3

When incorporating styles within the same template as shown below,

<style>
.tab-title-class {
    color: #FF0000 !important;  
}
</style>

a warning will be displayed in your console like this,

"[Vue warn]: Templates should only be responsible for mapping the state to the UI. Avoid placing tags with side-effects in your templates, such as < style >. "

and those styles will not be parsed.

To ensure the styles are applied, use an external CSS file.

Furthermore, make use of v-bind for the class attribute

<b-tab title="Transaction History" :title-item-class="tab-title-class">

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