Some links are coded to open in the current tab while others open in a new tab. To take control of this behavior, press Ctrl when you click a link to stay on your current page while opening the link in a new tab in the background.
How do I make a link open in the same window?
In HTML, <a> tag is used to open URL on browser's window. The href attribute allows to add a hyperlink to the <a> tag and redirect one page to another. By default, the URL is opened in the same window. So, you don't need to define any attribute in <a> tag to open URL in the same tab or window.