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Add a full-width section to LB to be as wide as all columns. I think the number is 1342px as the last option

1-column (100%, max width 980px)

Peel Region's Medical Officer of Health issues heat warnings and extended heat warnings upon notification from Environment and Climate Change Canada that heat thresholds have been met.

1 column, full width, container

Peel Region's Medical Officer of Health issues heat warnings and extended heat warnings upon notification from Environment and Climate Change Canada that heat thresholds have been met.Peel Region's Medical Officer of Health issues heat warnings and extended heat warnings upon notification from Environment and Climate Change Canada that heat thresholds have been met.Peel Region's Medical Officer of Health issues heat warnings and extended heat warnings upon notification from Environment and Climate Change Canada that heat thresholds have been met.Peel Region's Medical Officer of Health issues heat warnings and extended heat warnings upon notification from Environment and Climate Change Canada that heat thresholds have been met.

Peel Region's Medical Officer of Health issues heat warnings and extended heat warnings upon notification from Environment and Climate Change Canada that heat thresholds have been met.

3 column – left sidebar + main + right sidebar

Peel Region's Medical Officer of Health issues heat warnings and extended heat warnings upon notification from Environment and Climate Change Canada that heat thresholds have been met.

Peel Region's Medical Officer of Health issues heat warnings and extended heat warnings upon notification from Environment and Climate Change Canada that heat thresholds have been met.