:host {
     margin: 5px; 
}
h2 {
    color: #f90; 
}

.btn_excel{
    padding-top: 20px;
}

.excel_input{
    width: 230px;
}

.excel_button{
    width: 120px;
}



.btn_json{
    padding-top: 20px;
}

.btn_ts{
    padding-top: 20px;
}

.exchangBtn{
    background-color: #3A75AD;
    width: 230px;
    height: 40px;
    line-height: 40px;
}