body {
    background-color: #eaf3f8;
}

/* header start */
.header {
    background-color: #1b72de;
    color: white;
    font-size: 32px;
    font-weight: bold;
    height: 60px;
    display:flex;
    flex-direction:row;
    justify-content:space-between;
    align-items:center;
}

.header h3 {
    height: 60px;
    line-height: 60px;
    margin-left: 20px;
    float: left;
}

.language-dropdown {
    float: right;
    margin-right: 20px;
}

    .language-dropdown img {
        width: 24px;
        height: 24px;
    }

.dropdown-item {
    cursor: pointer;
}
/* header end */

/* 页面主体 */
.container {
    text-align: center;
    padding-bottom: 15px;
}

/* 页脚 */
html {
    position: relative;
    min-height: 100%;
}

body {
    /* Margin bottom by footer height */
    margin-bottom: 60px;
}

.footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    white-space: nowrap;
    line-height: 60px; /* Vertically center the text there */
}