.copy{position:relative; border:2px solid transparent;}
.copy:hover{border-color:#343a40;}
/*
.copy::after{content:''; display:none; position:absolute; top:0; left:0; width:100%; height:110%; border:2px solid #222; box-sizing:border-box; border-radius:20px;}
.copy:hover::after{display:block;}
*/
.copy-btn{content:'복사하기'; padding:5px 10px; position:absolute; bottom:10px; right:50px; box-sizing:border-box; font-size:0.8em; color:#fff; font-weight:600; background:rgba(0,0,0,.7); border-radius:0.2em; text-align:center; z-index:9999999; border:0;}
.copy-txt{}