.students {
    margin:auto;
    text-align:center;
}
.students label {
    text-align:center;
    font-size:28px;
    font-weight:bold; 
    margin-top:20px;

}
.students button {
    border: 0;
    outline:0;
    background: none; 
    font-size: 20px; 
    border-radius:10px;
    padding:15px;
    margin-top: 10px; 
    margin-bottom: 10px;  
    width:40%;
    cursor: pointer; 
    background-color: #CECECE;
    background-image: linear-gradient(#195a9c, #CECECE ,#e1e1e1 ,#e1e1e1,#e1e1e1); 
}
.students a {
        text-decoration:none;
}
.students button:hover {
        color:blue;
 }