Inner Rounding with two elements
Inner Rounding with one element
Diagonal Linear Gradient Stripes
Flexible Subtle Stripes
Continuous image borders
The easiest way is to use two HTML elements: one using a background with our image, and one with a white background covering it for our content area.
We can achieve the exact same effect with only one element. The main idea is to use a second background of pure white, covering the image.
Marching ants borders are dashed borders that seem to scroll like marching ants.