$1.$ Is it reasonable to try to code a web page that looks exactly the same on every browser and every platform? Explain your answer$\mathrm{.}2.$ When a web page containing the style rules below is rendered in a browser, the border does not display$\mathrm{.}3.$ Describe what is incorrect with the following code: h$2\{$ background$-$color: #ff$0000$ border$-$top: thin solid #$000000\}4.$ True or False? CSS can be used to configure visual elements such as rectangular shapes and lines on web pages.