It is html / css that I practiced by applying the transition and animation that I taught before. html/css animation effect border on sunday_tistory .box{ position:relative; width:300px; height:300px; background:#fff; padding:25px; border:1px solid #ddd; border-radius:5px; } .box h2{ font-size:24px; color:#444; line-height:1.4; font-weight:bold; } .box p{ font-size:14px; color:#444; line-height:1..
