.btn{color:#ccc;font-size:16px;font-weight:600;line-height:30px;max-width:180px;position:relative;text-decoration:none;width:100%;text-align:center;border-radius:25px;cursor:default;&:hover{text-decoration:none}}.btn-4{border:1px solid;overflow:hidden;position:relative;span{z-index:20}&:after{background:#fff;content:"";height:155px;left:-75px;opacity:.2;position:absolute;top:-50px;transform:rotate(35deg);transition:all .55s cubic-bezier(.19,1,.22,1);width:50px;z-index:-10}}.btn-4:hover{&:after{left:120%;transition:all .55s cubic-bezier(.19,1,.22,1)}}