.tel {
    color: #fff;
    display: inline-block;
    text-decoration: none;
    transition: .3s;
}

.form:hover {
    opacity: 0.5;
}

.tbox {
    padding: 0.5em 1em;
    margin: 1em 0;
    border: solid 3px #45a79d;/*線*/
    border-radius: 10px;/*角の丸み*/
}
.tbox p {
    margin: 0; 
    padding: 0;
}