.btn{display: inline-block; padding: 5px 10px; font-size: 14px; color: #fff; border: 2px solid #4d92d9; background-color: #4d92d9; text-decoration: none; transition: 0.4s;}
.btn:hover{background-color: transparent; color: #4d92d9; transition: 0.4s;}
.text-desc{position: absolute; left: 0; top: 0; background-color: #fff; height: 100%; opacity: 0; width: 100%; padding: 20px;}
.port-1{float: left; width: 100%; position: relative; overflow: hidden; /*text-align: center;*/ border: 4px solid rgba(255, 255, 255, 0.9);}
.port-1 .text-desc{opacity: 0.9; top: -100%; transition: 0.5s; color: #000; padding: 45px 20px 20px;}
.port-1 img{transition: 0.5s;}
.port-1:hover img{transform: scale(1);}
.port-1.effect-1:hover .text-desc{top: 0;}
@media only screen and (max-width: 1090px){
	ul{width: 340px; margin: 0 auto;}
	li{width: 100%; margin: 20px 0;}
}