.big-telegram-button{
 color: white;
    display: block;
    background-color: var(--main-color);
    border: 1px solid transparent;
    font-size: 16px;
    border-radius: 10px;
    padding: 20px;
    cursor: pointer;
    margin-left: auto;
    margin-right: auto;
    width: 60%;
}
.big-telegram-button:hover{
    background-color: grey;
}