#myBtn {
    background-color: #ff0000;
}

/* 弹窗background */
.modal {
    display: none;
    position: fixed;
    z-index: 10;
    padding-top: 200px;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    overflow: auto;
    /*background-color: #000;*/
    background-color: rga(0, 0, 0, 0.4);
    

}

/* 弹窗内容 */
.modal-content {
    position: relative;
    background-color: #fefefe;
    margin: auto;
    padding: 0;
    border: 1px solid #888;
    width: 80%;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0px 6px 20px 0px rgba(0, 0, 0, 0.19);
    -webkit-animation-name: animatetop;
    -webkit-animation-duration: 0.4s;
    animation-name: animatetop;
    animation-duration: 0.4s;
}

/* 添加动画 */
@-webkit-keyframes animatetop {
    from {
        top: -300px;
        opacity: 0;
    }

    to {
        top: 0px;
        opacity: 1;
    }
}

@keyframes animatetop {
    from {
        top: -300px;
        opacity: 0;
    }

    to {
        top: 0px;
        opacity: 1;
    }
}

/* 关闭按钮 */
.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

.modal-header {
    text-align: center;
    padding: 8px 16px;
    background-color: #37486a;
    color: #ffffff;
}

.modal-body {
    padding: 2px 16px;
    color:#000;
    
}

.modal-footer {
    text-align: center;
    padding: 8px 16px;
    background-color: #37486a;
    color: white;
}