What is a block-level element?
In HTML, <div>, <p>, <h1>, <form>, <ul> and <li> are block-level elements.
Setting display:block is to display the element as a block-level element. The following code converts the inline element a into a block element, so that the a element has the characteristics of a block element.
a{display:block;}
<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>!important</title> <style type="text/css"> a{ display:block; width:100px; height:18px; background-color:green; /*设置背景色*/ color:#fff; /*设置字体颜色*/ } </style> </head> <body> <a href="#">PHP中文网</a> </body> </html>