.link-section {
    margin: 0;
    padding: 0;
    font-family: arial;
    background: #fff;
    position: relative;
}

.center {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.center-width1 a {
    width: 300px;
}

.center-width2 a {
    width: 150px;
}

.center a {
    display: inherit;
    height: 50px;
    color: #ff3300;
    font-size: 20px;
    background: transparent;
    text-align: center;
    line-height: 50px;
    text-decoration: none;
    z-index: 1;
    transition: .5s;
}

.center a:before, .center a:after {
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #ff3300;
    opacity: 0;
    transition: .3s;
    z-index: -1;
    overflow: hidden;
}

.center a:before {
    left: 0;
    box-shadow: -100px 0 0 #ff3300;
}

.center a:after {
    right: 0;
    box-shadow: 100px 0 0 #ff3300;
}

.center a:hover:before {
    left: calc(50%-10px);
    opacity: 1;
    box-shadow: 30px 0 0 #ff3300;
}

.center a:hover:after {
    right: calc(50%-10px);
    opacity: 1;
    box-shadow: -30px 0 0 #ff3300;
}

span {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #ff3300;
    z-index: -2;
    transform: scale(0);
    transition: .3s;
    opacity: 0;
    border-radius: 8px;
    box-shadow: 0 10px 15px rgba(134, 20, 20, 0.5);
}

.center a:hover span {
    opacity: 1;
    transform: scale(1);
    transition-delay: .3s;
}

.center a:hover {
    color: #fff;
    transition-delay: .3s;
}