悬停时变换比例按钮（引导程序）

Question

悬停时，我试图放大按钮。我尝试更改颜色以查看是否正确定位了它，并且该方法可行。 但是转换没有。我正在使用引导程序

.btn {
    display: inline-block;
    padding-top: 12px;
    padding-bottom: 12px;
    padding-left: 30px;
    padding-right: 30px;
    border-radius: 2.25rem;
}

.btn-primary {

    display: inline-block;
    color: #ffffff;
    background: #EB71A4;
    background-image: -webkit-linear-gradient(top, #EB71A4, #EB4481);
    background-image: -moz-linear-gradient(top, #EB71A4, #EB4481);
    background-image: -ms-linear-gradient(top, #EB71A4, #EB4481);
    background-image: -o-linear-gradient(top, #EB71A4, #EB4481);
    background-image: linear-gradient(to bottom, #EB71A4, #EB4481);
}

.btn:hover {
    display: inline-block;
    color: green !important;
    transform: scale(2.5) !important;
}


<a href="#kontakt" class="btn btn-primary animate-pop-in shadow">Termin vereinbaren</a>