.widget_calculate {position:fixed;top:193px;left:50%;width:250px;margin-left:640px;}
.widget_calculate h2 {padding:0;margin:0;}
.widget_calculate input {width:100%;font-size:11pt;}
.widget_calculate .btn {width:100%;font-size:12pt;padding:12px 0;}
.widget_calculate .result {margin-top: 20px; font-size: 11pt; font-weight: bold; line-height:1.8;}