![]() Add in some semi-transparency with the color and we have our overlay The rest is what happens on :hover. To center both vertically and horizontally, use padding and text-align: center: I am vertically and horizontally centered. The trick is to create an outline that’s as thick as half the image size, then offset it by half the image size with a negative value. ![]() A simple solution is to use top and bottom padding: I am vertically centered. This may seem similar to borders, but there are some things that need to be. To do that first, we can select all the a HTML elements in the CSS stylesheet using the a selector and then use the :focus-visible pseudo-class on the selector. There are many ways to center an element vertically in CSS. Lets now study another interesting topic in CSS, which is outline. We aim to change this outline color to a red color and also want to increase its outline thickness by 3px. Home About Us Privacy Policy Advertisement areaįor example, let's say have some anchor ( a) HTML elements for the navigation in the webpage like this, Home About Us Privacy Policy Ī visual representation of the focusing the anchor HTML element tag using the tab key in the keyboard is shown below, Advertisement areaĪs you can see from the above GIF that when focusing on the anchor tags, a default blue outline is shown for each anchor tag. ![]() Shadows provide depth and help elements stand out, while the border properties can perform many different visual functions, from creating a linear divider between content to defining the space of a. So you can see a visible difference between outline and border. The appearance of borders and shadows can be manipulated via five main CSS properties: border, border-radius, box-shadow, text-shadow, and outline. It takes a CSS length unit and the empty space between the border and the outline will be transparent and then it takes the background color of the parent element. The outline-style property specifies the style of the outline, and can have one of the following values: dotted - Defines a dotted outline dashed - Defines a dashed outline solid - Defines a solid outline double - Defines a double outline groove - Defines a 3D grooved outline ridge - Defines a 3D ridged outline inset. To change the outline style of the anchor tag when focused using the tab key The outline offset is used to create a distance between outline and border. Using the `a` selector and using the `:focus-visible` pseudo-class To add or change the outline color of HTML elements when focused using the tab key, you can use the :focus-visible pseudo-class for the particular HTML element and then use the outline CSS property and set its value of your choice.
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