body {
    margin: 0 15px 15px 15px;
    height: 100%;
}

.layout {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tag-box {
    justify-content: flex-start;
    margin-bottom: 10px;
}

.layui-btn-container .layui-btn {
    margin-bottom: 0px;
    padding: 0 20px;
}

#demo button {
    margin-bottom: 5px;
}

.checkBtn {
    color: #409eff;
    border: 1px solid;
}

.layui-btn-sm {
    font-size: 14px;
}

.layui-form-item {
    margin-bottom: 0;
}

#open,
#close {
    cursor: pointer;
    color: #409eff;
    width: 60px;
}

.tag-item:hover {
    border-color: #409eff;
    color: #409eff;
}

.tag-box p {
    width: 70px;
    text-align: right;
}

#demo{
    width: calc(100% - 120px);
}