.panel-heading {                
        color: #fff !important;
        background-color: #f4511e !important;
        padding: 1px;
        border-bottom: 1px solid transparent;
        border-top-left-radius: 0px;
        border-top-right-radius: 0px;
        border-bottom-left-radius: 0px;
        border-bottom-right-radius: 0px;
}           
body {      
        background-color:red;
}           
h4 {
        color:white;
        font-size:28px;
}