body {
    background-image:linear-gradient(to right,#43c6ac, #f8ffae);
}

.container {
    padding-top:10px;
    padding-bottom:10px;
    max-width:1200px;
    margin-top:30px;
    margin-bottom:30px;
}

.kit {
    padding-top:20px;
    padding-bottom: 20px;
}

.card {
    height:450px;
}

.card body {
    height:50%;
}

.card-img-top {
    height:50%;
}