*,
*:after,
*:before {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

.box {
    font-family: 'Ubuntu', sans-serif;
    overflow: hidden;
    position: relative;
    transition: all 0.3s;
}



.box:before {
    content: '';
    background-color: transparent;
    background-image:
        radial-gradient(circle at 20% 80%, transparent 29%, rgba(255, 255, 255, 0.4) 30%, rgba(255, 255, 255, 0.4) 33%, transparent 34%),
        radial-gradient(circle at 80% 20%, transparent 29%, rgba(255, 255, 255, 0.4) 30%, rgba(255, 255, 255, 0.4) 33%, transparent 34%);
    background-size: 30px 30px;
    height: 100%;
    width: 100%;
    opacity: 0;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 1;
    transition: all 0.3s ease 0.2s;
}

.box:hover:before {
    opacity: 1;
    filter: blur(2px)
}

.box img {
    width: 100%;
    transition: all 0.3s ease 0s;
}



.box .box-content {
    color: #fff;
    background-color: rgba(0, 0, 0, 0.6);
    text-align: center;
    width: 100%;
    height: 100%;
    padding: 18% 0 0 0;
    position: absolute;
    left: -100%;
    top: 0;
    z-index: 2;
    transition: all 0.3s ease 0s;
}

.box:hover .box-content {
    left:0;
}

.box .title {
    color: #fff;
    font-size: 23px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin: 0;
}
.box:hover img {
// 高斯模糊
    // filter: blur(2px);
}

@media only screen and (max-width:990px) {
    .box {
        margin-bottom: 30px;
    }
}

@media only screen and (max-width:479px) {
    .box .title {
        font-size: 20px;
    }
}