Removing standard CSS SLDS or overriding

Question

I have embedded a visual flow inside a component. On embedding some of the css is not going well and the CSS class is standard on debugging I found that it is because of the class and its properties name slds-form-element__label Is there any way to remove the attribute or the standard behavior of that class from your custom component. CSS is causing the below radio button break as shown in image.

I tried using

.THIS {
}
.THIS .slds-form-element__label {

}

But this doesnt worked

Answer 1

As to override the CSS , Which was coming as default from the standard VisualFlow+Lightning community I used the component CSS markup with the css class name as the class to be overriden.

.THIS .slds-form-element__label {
    font-weight: normal !important;
    font-size: unset !important;
    padding: inherit !important;
}