CodePen Embed - Hide Elements with CSS

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body {
    font-family: 'Roboto Mono', monospace;
    background: #353535;
    line-height: 1.6em;
}

.container {
    display: flex;
    max-width: 1000px;
    flex-wrap: wrap;
    padding-bottom: 30px;

    @media (min-width: 690px) {
    	margin-left: 10px;
    	margin-right: 10px;
    }
    
    @media (min-width: 992px) {
        flex-wrap: nowrap;
        margin: 0 auto;
        padding-left: 10px;
        padding-right: 10px;
    }
}

.col {
    margin: 15px 15px 0;
    width: 100%;

    @media (min-width: 690px) {
        width: calc(50% - 20px);
        margin: 20px 10px 0;
    }

    @media (min-width: 992px) {
    	width: 50%;
    	margin: 30px 15px 0;
    }
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.sh-container {
    display: block;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 5px rgba(0,0,0,0.1);
    backface-visibility: hidden;
    
    &:not(:last-child) {
        margin-bottom: 15px;

        @media (min-width: 690px) {
            margin-bottom: 20px;
        }
        
        @media (min-width: 992px) {
             margin-bottom: 30px;
        }
    }
}

.sh-effect--delta {
    &::before {
        content: '';
        position: absolute;
        display: block;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        background: linear-gradient(to bottom, #e80202 0%,#f578d4 100%);
        opacity: 0;
        transition: opacity 0.2s ease;
        z-index: 5;
    }
    
    &::after {
        content: '';
        position: absolute;
        display: block;
        right: 0;
        bottom: 0;
        left: 0;
        height: 70%;
        opacity: 0.3;
        background: linear-gradient(to bottom, rgba(125,185,232,0) 0%,rgba(1,2,2,1) 99%,rgba(0,0,0,1) 100%);
    }
    
    &:hover {
        .sh-effect--delta__overlay {
            transform: translate3d(0,0,0) scale(1);
            opacity: 1;
            transition: 0.2s ease;
        }
        
        .sh-effect--delta__meta {
            transition: 0.2s ease;
        }
        
        .sh-effect--delta__image {
            transform: scale(1.25) translate3d(0,0,0);
            transition: 0.2s ease;
        }
        
        &::before {
            opacity: 0.5;
            visibility: visible;
            transition: opacity 0.2s ease;
        }
    }
    
    &__image {
        transform: scale(1.2);
        transition: transform 0.2s ease;
    }

    &__overlay {
        color: #fff;
        position: absolute;
        top: 20px;
        right: 20px;
        bottom: 20px;
        left: 20px;
        z-index: 10;
        transform: scale(0.8);
        opacity: 0;
        transition: 0.2s ease;
        color: #fff;
        padding: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
        border: 2px solid #fff;
        
        @media (min-width: 1200px) {
            padding: 25px 30px;
        }
    }
    
    &__overlay-inside {
        padding: 20px;
        text-align: center;
        
        @media (min-width: 1200px) {
            padding: 40px;
        }
    }

    &__title {
        margin: 0;
        font-size: 16px;
        font-weight: 700;
        transition: 0.2s ease;
        
        @media (min-width: 1200px) {
            font-size: 21px;
        }
    }
    
    &__meta {
        color: rgba(255,255,255,0.7);
        transition: 0.2s ease;
        font-size: 12px;
        position: relative;
        z-index: 20;
        padding: 5px 0 0 0;
        margin-top: 5px;
        
        @media (min-width: 1200px) {
            font-size: 16px;
            padding: 5px 0 0 0;
        }
    }
    
    &__author-meta {
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 15;
        margin-bottom: 10px;
    }
    
    &__avatar {
        width: 30px;
        height: 30px;
        border-radius: 50%;
        margin-right: 15px;
        
        @media (min-width: 1200px) {
            width: 40px;
            height: 40px;
        }
    }
    
    &__date {
        font-size: 11px;
        color: #fff;
        text-shadow: 0 0 4px rgba(0,0,0,0.2);
        
        @media (min-width: 1200px) {
            font-size: 13px;
        }
    }
}

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