css 三角形的制作
<style> #sanjiao{ width: 0px; height: 0px; border-top:10px solid black; border-left: 10px solid transparent; border-right: 10px solid transparent; } </style> </head> <body> <span ></span>
<style> #sanjiao{ width: 0px; height: 0px; border-top:10px solid black; border-left: 10px solid transparent; border-right: 10px solid transparent; } </style> </head> <body> <span ></span>