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Let's say that you are developing a website so that elements are visually placed in specific parts of the web page, like arranged in columns and rows, properly visible on the web page; so something like what you see on the homepage of the Dalhousie website. Which of the following is important in the context of such an arrangement? Contrast Repetition Proximity Alignment Let's say that you are developing a website so that elements are visually placed in specific parts of the web page, like arranged in columns and rows, properly visible on the web page; so something like what you see on the homepage of the Dalhousie website. Which of the following is important in the context of such an arrangement? Contrast Repetition Proximity Alignment You have set the width of an image to be 240px and the padding around it to be 1px. You place another image (132px) to the right side of the first image, which has 18px padding around it, along with a margin of 6px around it. Both these elements are placed inside a section, whose width is equal to the sum of the widths of these two elements. This section has a border of 4px on all sides. What is the content width of the section? O 418px 430px Suppose you have a flex container with the following dimensions: height = 800px and width = 800px. This flex container has one child element, an image, with a height of 200px and width of 200px. You are expected to place this image in the perfect centre of the flex container. Which of these properties will help you place the image in the perfect centre of the flex parent? We have to set all four margin values (top, right, bottom, left) to be auto. We have to set align-items to center and set a top and bottom margin to auto. We have to set all four margin values (top, right, bottom, left) to be auto. We have to set align-items to center and set a top and bottom margin to auto. We have to set all four padding values (top, right, bottom, left) to be auto. We have to set align-items to center and justify-content to center