.demo{padding: 2em 0;}
    :root{
        --color_1: #fff;
        --main-color: #1dd1a1;
    }
    .box{
        font-family: 'Niramit', sans-serif;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .box:before,
    .box:after,
    .box-content:before,
    .box-content:after{
        content: '';
        background: linear-gradient(transparent,rgba(0,0,0,0.9));
        height: 97%;
        width: 25%;
        transform: translateY(-100%);
        position: absolute;
        left: 0;
        top: 0;
        z-index: 1;
        transition: all 0.3s;
    }
    .box:hover:before,
    .box:hover:after,
    .box:hover .box-content:before,
    .box:hover .box-content:after{
        transform: translateY(0);
    }
    .box:after{ left: 25%; }
    .box .box-content:before{ left: 50%; }
    .box .box-content:after{ left: 75%; }
    .box:hover:before{ transition-delay: 0.225s; }
    .box:hover:after{ transition-delay: 0.075s; }
    .box:hover .box-content:before{ transition-delay: 0.15s; }
    .box:hover .box-content:after{ transition-delay: 0s; }
    .box img{
        width: 100%;
        height: auto;
        transition: all 0.3s ease 0s;
    }
    .box:hover img{ filter: grayscale(100%); }
    .box .box-content{
        width: 100%;
        height: 100%;
        position: absolute;
        bottom: 0;
        left: 0;
        transition: all 0.2s;
    }
    .content{
        width: 100%;
        padding: 7px 0;
        opacity: 0;
        position: absolute;
        left: 0;
        bottom: -30px;
        z-index: 2;
        transition: all 0.3s ease 0.1s;
    }
    .box:hover .content{
        opacity: 1;
        bottom: 20px;
    }
    .box .title{
        color:#fff;
        font-size: 25px;
        font-weight: 500;
        letter-spacing: 1px;
        text-transform: uppercase;
        margin: 0;
    }
    .box .post{
        color: var(--main-color);
        font-size: 16px;
        font-style: italic;
        text-transform: capitalize;
        letter-spacing: 1px;
        margin-bottom: 10px;
        display: block;
    }
    .box .icon{
        padding: 0;
        margin: 0;
        list-style: none;
        transform: translateX(-50%);
        position: absolute;
        top: 15px;
        /* right: -10px; */
        z-index: 2;
        transition: all 0.5s ease 0.3s;
    }
    .box .icon li{
        opacity: 0;
        transform: scale(0) rotate(360deg);
        transition: all 400ms;
    }
    .box:hover .icon li{
        opacity: 1;
        transform: scale(1) rotate(0);
    }
    .box .icon li a{
        color: var(--color_1);
        background-color: var(--main-color);
        font-size: 20px;
        line-height: 40px;
        height: 40px;
        width: 40px;
        margin-bottom: 10px;
        border-radius: 50%;
        display: block;
        position: relative;
        transition: all 0.3s;
    }
    .box .icon li a:hover{
        text-decoration: none;
        color: var(--main-color);
        background-color: var(--color_1);
        border-radius: 0 20px 0 20px;
    }
    @media only screen and (max-width:990px){
        .box{ margin-bottom: 30px; }
    }
    @media only screen and (max-width:479px){
        .box .title{ font-size: 20px; }
    }