body,html{
    height: 100%;
    width: 100%;
    padding: 0;
    margin: 0;
    background-color: #f4f4f4;

}
.header_title{
    width: 100%;
    min-width: 1100px;
    position: relative;
}
.content_middle{
    width: 75%;
    height: fit-content;
    margin-bottom: 20px;
    min-width: 700px;
    min-height: 550px;
    background-color: #fff;
    position: absolute;
    top: 76%;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 1px -1px rgba(0, 0, 0, 0.15);
}
.footer{
    position: absolute;
    bottom: 0px;
    width: 100%;
    height: 15%;

}
.layer_num {
    width: fit-content;
    height: fit-content;
}
.layer_num .layui-layer-setwin .layui-layer-close1 {
    color: #fff;
}
.check-code-form {
    width: fit-content;
    padding: 15px;
}
.check-code-form input {
    border: 1px solid silver;
}
.check-code-form button {
    background: #2889f1;
    padding: 8px 30px;
    letter-spacing: 1px;
    color: #fff;
}
.check-code-form :last-child {
    width: 80%;
    margin-left: 17%;
    margin-right: auto;
}