https://virgool.ir/feed/@amirsamahmadiاسمم امیرسامه /13 سالمه / برنامه نویسم / به زودی وب سایت شخصیم رو میسازمfa2026-11-11 08:26:53https://files.virgool.ir/upload/users/1131824/avatar/BVcoiu.jpeghttps://virgool.ir/@amirsamahmadihttps://virgool.ir/@amirsamahmadi/طراحی-خلاقانه-با-css-yzqtld4eiv24css*{margin: 0;padding: 0;box-sizing: border-box}.shadow{position: relative;width: 900px;height: 450px;background: #111;margin: 200px auto;color: #fff;font-size: 1.5em;text-align: center;line-height: 50px;}.shadowb::before,.shadow::after{content: " ";position: absolute;width:calc(100% + 6px);height:calc(100% + 6px);top: -3px;left: -3px;background: linear-gradient(45deg,#fc0090,#0000ff,#00ff00,#ff0000,#ffff00,#fc0090,#0000ff,#00ff00,#ff0000,#ffff00);background-size:300%;z-index:-1;animation:shadow 15s linear infinite;}.shadow::after{filter: blur(30px);}@keyframes shadow{0%{background-position:0 0;}50%{background-position:300% 0}100%{background-position:0 0 ;}}html<div class="shadow">خروجیAmirsam AhmadiAmirsam AhmadiSat, 21 Aug 2021 18:10:38 +0430