@font-face {
    /* 重命名字体名 */
    font-family: 'Zen Maru Gothic';
    src: url('./fonts/ZenMaruGothic-Regular.ttf');
    font-weight: normal;
    font-style: normal;
}

.btn {
    font-size: 25px;
    /* width: 200px; */
    /* height: 60px; */
}