<div id="mark"><h1>未见八月</h1>
</div>
<style><!--
*{margin: 0;padding: 0;
}#mark{width: 200px;height: 60px;color: white;text-shadow: 0 2px 1px black,2px 0 1px black;display: block;position: relative;top: 100px;left: 0;box-shadow: 0 0 5px rgba(0,0,0,0.5), inset 0 0 2px white;text-align: center;transform: rotate(-45deg);margin-bottom: 250px;
}#mark::before {content: "";position: absolute;display: block;width: 140px;height: 140px;border: 50px solid rgb(185, 183, 289);border-right-color: rgba(185, 183, 289, 0);border-bottom-color: rgba(185, 183, 289, 0);transform: translate(-20px,-59px) rotate(45deg);
}#mark h1{font: 20px "微软雅黑";line-height: 60px;}
--></style>

<div id="cover"><div id="animation_play"><h1>未见八月</h1></div>
</div><style><!--
#animation_play h1{display: block;position: relative;width: 250px;height: 60px;text-align: center;line-height: 0px;z-index: -1;animation: animation_mark 10s infinite;
}@keyframes animation_mark {0% {opacity: 0;box-shadow: 0 0 0 rgba(0,0,0,0.5), inset 0 0 0 white;}10% {opacity: 1;color: black;line-height: 60px;text-shadow: 0 0 1px black, 0 0 1px black;box-shadow: 0 0 20px rgba(0,0,0,0.5), inset 0 0 10px white;}20% {color: white;opacity: 1;line-height: 60px;text-shadow: 0 5px 5px black, 0 5px 5px black;box-shadow: 0 0 5px rgba(0,0,0,0.5), inset 0 0 2px white;}30% {color: white;opacity: 1;line-height: 60px;text-shadow: 0 2px 1px black,2px 0 1px black;box-shadow: 0 0 5px rgba(0,0,0,0.5), inset 0 0 2px white;transform: rotate(0deg)  translate(0,0);}40% {color: white;opacity: 1;line-height: 60px;text-shadow: 0 2px 1px black,2px 0 1px black;box-shadow: 0 0 5px rgba(0,0,0,0.5), inset 0 0 2px white;transform: rotate(-45deg)  translate(-61px,-27px);}90%{color: white;opacity: 1;line-height: 60px;text-shadow: 0 2px 1px black,2px 0 1px black;box-shadow: 0 0 5px rgba(0,0,0,0.5), inset 0 0 2px white;transform: rotate(-45deg)  translate(-61px,-27px);}100%{opacity: 0;box-shadow: 0 0 0 rgba(0,0,0,0.5), inset 0 0 0 white;}
}#cover{position: relative;display: block;width: 250px;height: 250px;border: 50px solid rgb(185, 183, 289);border-right-color: rgba(185, 183, 289, 0);border-bottom-color: rgba(185, 183, 289, 0);
}
--></style>