.headline {
    color: whitesmoke;
    background-color: #81C2E8;
    font-weight: bold;
    letter-spacing: -1px;
    line-height: 2;
    text-align: center;
    margin: 0px;
    padding-top: 20px;
    padding-bottom: 20px;
    font-size: 4vw;
}
.head {
    color: aliceblue;
    background-color: #81C2E8;
    padding:5%;
    
}

.visbackcolor {
    background-color: #81C2E8;
}



.overlay {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100%;
    width: 100%;
    opacity: 0.4;
    transition: .5s ease;
    background-color: #000000;
    
}

.appcontainer:hover .overlay {
    opacity: 0; 
}

.appcontainer {
    position: relative;
    text-align: center;
    
}

.appcaption {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #0e4a68;
    font-size: 3vw;
}


.textcontainer {
padding:4%;
}