/* 讓 logout form 排版正確 */
.login-logged .logout-form {
    height: auto;
    margin-bottom: 10px;
}
/* 讓 button 長得像 a.logout-btn */
.login-logged .logout-form .logout-btn {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 34px;
    background: #6696e8;
    color: white;
    border: 0;
    border-radius: 5px;
    cursor: pointer;
    /* 補 a 原本會有的 */
    text-decoration: none;
    font: inherit;
}
/* 滑鼠游標移至按鈕的效果 */
.login-logged .logout-form .logout-btn {
    transition: opacity .2s ease;
}
.login-logged .logout-form .logout-btn:hover {
    opacity: 0.75;
}