14.2.1 Background properties: 'background-color', 'background-image', 'background-repeat', 'background-attachment', 'background-position', and 'background'. This property sets the background color of an element, either a <color> value or the keyword 'transparent', to make the underlying colors shine through.
1 A spiral fracture happens when the break spirals around the bone, which can happen if the bone is twisted. 2  A compression fracture happens when vertebrae in the spinal column are pushed together in an accident or because of osteoporosis.
The most common causes of femur fracture are: 1  High-speed trauma, such as a motor vehicle or motorcycle accident, a fall from a high place, or an injury during extreme or contact sports. 2  A preexisting bone disease that weakens the bone, such as a tumor, Paget disease, bone cysts, or osteoporosis.