Q: Look, then, at the corners and see what, if anything, is fastening the wings (ear pieces) to the rims around the lenses. If you have trouble seeing this area, use a magnifying glass and more lighting.  Some plastic frames have the wings (ear pieces) attached by a hinge embedded in the frame, so you will not be able to remove it easily, nor should you try to force it. If this is the case, skip the next step. Some sunglasses have only the wings (ear pieces) fastened on by screws to the hinge, with the hinge and lens framing portions as one solid piece of plastic. In this event, you should skip to the next method. If you see the hinge fastened by screws to the frame holding the lens, you can proceed with the next step. You are removing the screw closest to the frame, not the wing (ear piece). Use the screw-driver from an eye glass repair kit. You should only have to do this for the side on the lens you are removing--unless you are doing both.  These frames are very light, so you may want to brace the frame with something, even your free hand or the hand of a helper while you do this. Most of the screws you encounter will be right-handed—that is, turning the screw counter-clockwise should loosen it and clockwise should tighten it. Once the screw is out, carefully set it aside. The screws are usually very tiny and easy to lose. It might help to affix the screw to a piece of fairly sticky packing tape. Many eye glass kits come with containers that are handy for storing the screws temporarily. At this point the frame and hinge should be separated. If the lens does not pop out on its own, give it an extra push.  If you had to skip the step regarding screw-removal from the hinge, keep in mind that you will be putting extra stress on the hinge, so try to avoid grabbing on the wings themselves for the removal process. Hold the frame so only a couple of fingers are pushing on the frame from the back--perhaps two thumbs. Make sure the sunglasses are not high off the surface you are working on, and you don't accidentally lift them as you push with slow but gradually increasing pressure on the back of the lens until it falls forward. Once the lens is out, have a soft-lined, but hard cased container ready to carry them until you determine what you will do with them next. Do this until you have a replacement lens ready to install into the frame. This will help avoid the frames getting damaged, and make it less likely you will lose the original fastener.  Make sure the hinge where the frame and wing meet is lined up properly. Many eye glass kit screwdrivers are magnetic at the tips, so this can assist in keeping the screw lined up at the hinge's opening. Standard technique should mean a clockwise motion will tighten the screw. Hold the frame and wing together at the hinge with one hand or assistance while you use the kit screwdriver to complete the process. You will need to consult with your optometrist if a new prescription lens is necessary. Proper fitting of a replacement lens may require the services of an eyeglass shop.
A: Set the glasses with the wings open on a flat surface. Unscrew the screw-fastener from the hinge. Press on the lens lightly. Screw the hinge back together. Acquire a replacement lens.

Q: CSS is a more powerful and consistent way to style your web page. This makes it the ideal way to determine how your page looks, while HTML is designed to determine what your page means. It's completely fine to use HTML tags when you want to emphasize important text, but CSS will give you more close control over the visual appearance of your bold text. Try opening a basic HTML page with different browsers, and you might notice differences in the display. CSS tells the browser exactly how to display text altered by a given tag, to minimize the amount of variation. If you don't know CSS yet, using "inline CSS" is a good way to get started. While you can use this to alter tags such as <p> or <h1>, sometimes you'll want to change text that's not already between tags. In this case, place the text between <span></span> tags. This has no effect on its own, but gives us something to work with. Here's the example we'll be using: <span>I learned how to make this text bold with inline CSS.</span> HTML attributes are written directly in the tag, inside the <  >brackets. The style attribute is necessary to insert CSS into the HTML tag, so we'll insert style= into the span tag:  <span style=>I learned how to make this text bold with inline CSS.</span> There's no reason to add the style attribute without specifying any styles. We're just taking this one step at a time to make it easy to follow. CSS properties are added as part of the style attribute. In our case, we'll use the font-weight property, which determines how thick to draw the font. This single property can be used to display bold (extra-thick) text, thin text, or even specify that the text should be displayed with normal thickness. Add "font-weight: " after the = sign, like this:  <span style="font-weight: ">I learned how to make this text bold with inline CSS.</span> Again, this is unfinished and won't do anything by itself. Don't forget the quotation marks before and after font-weight:. The only thing we need to do now is add a value for font-weight, between the font-weight: and the final quotation mark. There are quite a few options for different amounts of "boldness," but the value bold is the easiest to use : <span style="font-weight:bold">I learned how to make this text bold with inline CSS.</span> CSS gives you many more options than HTML, so you don't need to feel constricted. Here are several alternatives to the "bold" value:  <span style="font-weight:bolder">"Bolder" text will always be thicker than the parent element.</span> For example, if you make an entire paragraph "bold," then use "bolder" on an individual sentence inside that paragraph, it will be even thicker. <span style="font-weight:normal">"Normal" text will be displayed as normal even if the span is inside a bold tag.</span> <span style="font-weight:900">You can instead use a number from 100 to 900 to specify thickness. 400 is normal text, while bold text uses a thickness of 700 by default.</span>
A:
Understand when to use CSS. Add a <span> tag to your text. Add the style attribute. Add the font-weight property. Add the bold value. Experiment with other values.