The best way to set a width to the panel is to place the panel inside the bootstrap grid columns. Thanks to that it will be always responsive.

The gray border shows the size of his parent element (grid column).

Detailed documentation and more examples about Bootstrap image slider you can find in our Bootstrap Grid Docs

.col-md-4

Some quick example text to build on the panel title and make up the bulk of the panel's content.

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col-md-6

Some quick example text to build on the panel title and make up the bulk of the panel's content.

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col-md-8

Some quick example text to build on the panel title and make up the bulk of the panel's content.

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Outside the grid the panel will always have 100% of the width of its parent element

Panel title

Some quick example text to build on the panel title and make up the bulk of the panel's content.

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You can also hard code the width of the panel, but it won't be responsive in this case.

style="width: 200px;"

Some quick example text to build on the panel title and make up the bulk of the panel's content.

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