.single_image_effect {
    display: block;
    position: relative;
    overflow: hidden
}

.single_image_effect:before {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 2;
    display: block;
    content: '';
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.2);
    border-radius: 100%;
    opacity: 0;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%)
}

@media (min-width: 1025px) {
    .single_image_effect:hover:before {
        -webkit-animation:circle 0.75s;
        -ms-animation: circle 0.75s;
        -o-animation: circle 0.75s;
        animation: circle 0.75s
    }
}

@-ms-keyframes circle {
    0% {
        opacity: 1
    }

    40% {
        opacity: 1
    }

    100% {
        width: 200%;
        height: 200%;
        opacity: 0
    }
}

@-o-keyframes circle {
    0% {
        opacity: 1
    }

    40% {
        opacity: 1
    }

    100% {
        width: 200%;
        height: 200%;
        opacity: 0
    }
}

@-webkit-keyframes circle {
    0% {
        opacity: 1
    }

    40% {
        opacity: 1
    }

    100% {
        width: 200%;
        height: 200%;
        opacity: 0
    }
}

@keyframes circle {
    0% {
        opacity: 1
    }

    40% {
        opacity: 1
    }

    100% {
        width: 200%;
        height: 200%;
        opacity: 0
    }
}