html {
    font-size: 17px;
    font-family: 微軟正黑體, Microsoft JhengHei;
}

input {
    font-family: 微軟正黑體, Microsoft JhengHei;
}

body {
    letter-spacing: 1px;
}

h1 {
    letter-spacing: 3px;
}

.mySlides {
    display: none;
}

.w3-tag, .fa {
    cursor: pointer;
}

.w3-tag {
    height: 15px;
    width: 15px;
    padding: 0;
    margin-top: 6px;
}

.w3-bold {
    font-weight: bold;
}

.w3-btn, .w3-button {
    letter-spacing: 3px;
}

.w3-top > .w3-row {
    max-width: 1200px;
    margin: auto;
}

#content > div:nth-child(odd) {
    color: #000 !important;
    background-color: #fff !important;
}

#content > div:nth-child(even) {
    color: #000 !important;
    background-color: #f1fff5 !important;
}

a {
    text-decoration: none;
}

    a[href="./"] {
        color: #0042ff;
    }

    a[href^="http"] {
        font-weight: bold;
        color: blue;
    }

.w3-center > * {
    float: unset !important;
}

@media only screen and (max-width: 600px) {
    .w3-col.s3 > .w3-button {
        font-size: 15px;
        padding: 8px 0px !important;
        letter-spacing: 1px;
    }
}

#popup {
    display: none;
}

.popup-column {
    position: fixed;
    border: 0px;
    bottom: 0px;
    left: 0px;
    right: 0px;
    top: 0px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    z-index: 1001;
}

.popup-content {
    margin: 0 auto;
    position: relative;
    border: 0px;
    box-shadow: 0 4px 10px 0 rgba(0,0,0,0.2),0 4px 20px 0 rgba(0,0,0,0.19);
    background-color: white;
    margin: 0px auto;
    max-width: 87vw;
}

iframe {
    border: 0px;
    width: 100%;
}

.popup-content > *:not(.popup-close) {
    margin: 0;
    padding: 16px;
}

#popupMsg, #popupIframe {
    min-height: 20vh;
}

.popup-bg {
    background-color: #202020;
    border: 0px;
    bottom: 0px;
    left: 0px;
    opacity: 0.5;
    position: fixed;
    right: 0px;
    top: 0px;
    z-index: 1000;
}

.popup-close {
    position: absolute;
    right: -0.4em;
    top: -0.4em;
    color: white;
    padding: 0px;
    cursor: pointer;
    font-size: 150%;
    line-height: 1em;
}

.w3-green-1 {
    color: #000;
    background-color: rgb(157, 222, 164);
}

.w3-green-2 {
    color: #fff;
    background-color: rgb(96,175,102);
}

.w3-green-3 {
    color: #fff;
    background-color: rgb(32,150,98);
}

.w3-green-4 {
    color: #fff;
    background-color: rgb(25,117,78);
}

.header-icon {
    display: inline-block;
    height: 61px;
    float: left;
    margin: 10px;
}

.icon {
    fill: currentColor; /* 讓 icon 繼承文字顏色 */
    vertical-align: -0.125em; /* font-awesome 的垂直置中 */
    height: 1em;
    width: 1em;
    overflow: visible;
    pointer-events: none;
}

    .icon use {
        transform: scale(1);
        transform-origin: center;
    }