body {
    margin: 0;
    width: 100vw;
    height: 100vh;
    background: #ffffff url("../img/bg.jpg") no-repeat center center/ 1920px 1080px;
}

h4 {
    font-weight: 400;
}
.mr10 {
    margin-right: 20px;
}
.flex-align {
    display: flex;
    align-items: center;
}

.flex-justify {
    display: flex;
    justify-content: center;
}

.list {
    overflow: hidden;
}

.item {
    width: 400px;
    border-radius: 10px;
    box-sizing: border-box;
    cursor: pointer;
}

.item img {
    margin-top: 30px;
    display: block;
    width: 200px;
    height: 200px;
}

.item > a {
    padding: 100px;
    text-decoration: none;
    /*transform: translateY(200px);*/
}

.bg-white {
    background-color: #ffffff;
}

.bg-blue {
    background-color: #1e90ff;
}

.white {
    color: #ffffff;
}

.blue {
    color: #1e90ff;
}