Alerts

Provide contextual feedback messages for typical user actions with the handful of available and flexible alert messages.

A default gray alert wouldn't make too much sense, so you're required to specify a type with the severity attribute. Choose from success, info, warning, or danger.

The title attribute is optional and will add a title to the Alert.

The b:alert tag is a container so you are free to use the markup you prefer for the message:

Well done! You successfully read this important alert message.
Heads up! This alert needs your attention, but it's not super important.
Warning! Best check yo self, you're not looking too good.
Oh snap! Change a few things up and try submitting again.
Heads up!
This alert needs your attention, but it's not super important.

Dismissable alerts

You can make Alerts dismissable adding closable="true" :

Warning Title
Warning! Best check yo self, you're not looking too good.

this message will close when you click on the cross on the left.


Reference section

Attribute Default value Description
binding (none) An EL expression referring to a server side UIComponent instance in a backing bean.
closable false If true close button will be displayed.
col-lg
colLg (alternative writing)
-1 Integer value to specify how many columns to span on large screens (≥1200 pixels wide). The number may optionally be followed by "column" or "columns". Alternative legal values: half, one-third, two-thirds, one-fourth, three-fourths.
col-md
colMd (alternative writing)
-1 Integer value to specify how many columns to span on medium screens (≥992 pixels wide). The number may optionally be followed by "column" or "columns". Alternative legal values: half, one-third, two-thirds, one-fourth, three-fourths.
col-sm
colSm (alternative writing)
-1 Integer value to specify how many columns to span on small screens (≥768p pixels wide). The number may optionally be followed by "column" or "columns". Alternative legal values: half, one-third, two-thirds, one-fourth, three-fourths.
col-xs
colXs (alternative writing)
-1 Integer value to specify how many columns to span on tiny screens (≤ 767 pixels wide). The number may optionally be followed by "column" or "columns". Alternative legal values: half, one-third, two-thirds, one-fourth, three-fourths.
display block If you use the "visible" attribute, the value of this attribute is added. Legal values: block, inline, inline-block. Default: block.
hidden (none) This column is hidden on a certain screen size and below. Legal values: lg, md, sm, xs.
id (none) Unique identifier of the component in a namingContainer.
large-screen
largeScreen (alternative writing)
-1 Alternative spelling to col-lg. Integer value to specify how many columns to span on large screens (≥1200 pixels wide). The number may optionally be followed by "column" or "columns". Alternative legal values: half, one-third, two-thirds, one-fourth, three-fourths.
medium-screen
mediumScreen (alternative writing)
-1 Alternative spelling to col-md. Integer value to specify how many columns to span on medium screens (≥992 pixels wide). The number may optionally be followed by "column" or "columns". Alternative legal values: half, one-third, two-thirds, one-fourth, three-fourths.
offset (none) Integer value to specify how many columns to offset.
offset-lg
offsetLg (alternative writing)
(none) Integer value to specify how many columns to offset.
offset-md
offsetMd (alternative writing)
(none) Integer value to specify how many columns to offset.
offset-sm
offsetSm (alternative writing)
(none) Integer value to specify how many columns to offset.
offset-xs
offsetXs (alternative writing)
(none) Integer value to specify how many columns to offset.
rendered false Boolean value to specify the rendering of the component, when set to false the component will not be rendered.
severity (none) Severity of the Alert, can be success, info, warning, danger. Default is warning.
small-screen
smallScreen (alternative writing)
-1 Alternative spelling to col-sm. Integer value to specify how many columns to span on small screens (≥768p pixels wide). The number may optionally be followed by "column" or "columns". Alternative legal values: half, one-third, two-thirds, one-fourth, three-fourths.
span (none) Integer value to specify how many columns to span on medium screens (≥992 pixels). The number may optionally be followed by "column" or "columns". Alternative legal values: half, one-third, two-thirds, one-fourth, three-fourths.
style (none) Inline style of the input element.
style-class
styleClass (alternative writing)
(none) Style class of this element.
tiny-screen
tinyScreen (alternative writing)
-1 Alternative spelling to col-xs. Integer value to specify how many columns to span on tiny screens (≤ 767 pixels wide). The number may optionally be followed by "column" or "columns". Alternative legal values: half, one-third, two-thirds, one-fourth, three-fourths.
title (none) Bold Title displayed before your message.
tooltip (none) The text of the tooltip.
tooltip-container
tooltipContainer (alternative writing)
body Where is the tooltip div generated? That's primarily a technical value that can be used to fix rendering errors in special cases. Also see data-container in the documentation of Bootstrap. The default value is body.
tooltip-delay
tooltipDelay (alternative writing)
0 The tooltip is shown and hidden with a delay. This value is the delay in milliseconds. Defaults to 0 (no delay).
tooltip-delay-hide
tooltipDelayHide (alternative writing)
0 The tooltip is hidden with a delay. This value is the delay in milliseconds. Defaults to 0 (no delay).
tooltip-delay-show
tooltipDelayShow (alternative writing)
0 The tooltip is shown with a delay. This value is the delay in milliseconds. Defaults to 0 (no delay).
tooltip-position
tooltipPosition (alternative writing)
(none) Where is the tooltip to be displayed? Possible values: "top", "bottom", "right", "left", "auto", "auto top", "auto bottom", "auto right" and "auto left". Default to "bottom".
visible (none) This column is shown on a certain screen size and above. Legal values: lg, md, sm, xs.