.btn_don
{
background-color: #ee9e12; 
 display: inline-block;   
 min-width: 150px; 
 color: white;
 border: none;
 padding: 10px 20px;
 font-size: 16px;
 border-radius: 25px;
 cursor: pointer;
 text-decoration: none;
    font: 13px Montserrat;
 transition: background-color 0.3s ease;      
    }