.logos img{opacity:.5;-webkit-filter:grayscale(100%);-moz-filter:grayscale(100%);filter:grayscale(100%)}.logos img:hover{opacity:1;-webkit-filter:grayscale(0%);-moz-filter:grayscale(0%);filter:grayscale(0%)}@media(max-width:575.98px){.logos img{width:50%}}