.btn{
    display: inline-block;
    padding: 0.25em 0.5em;
    text-decoration: none;
    background: #f7f7f7;
    border-left: solid 3px #0924be;/*����*/
    color: #0924be;/*�����F*/
    font-weight: bold;
    box-shadow: 0px 2px 2px rgba(0, 0, 0, 0.29);
}
.btn:active {
    box-shadow: inset 0 0 2px rgba(128, 128, 128, 0.1);
    transform: translateY(2px);
}