body {
    /*background-image: url("main_background.jpg");*/
    background-image: linear-gradient(to bottom right, darkorchid, lawngreen);
    background-size: cover;
    background-attachment: fixed;
}

.app-item-box {
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    float: left;
    margin: 1%;
    width: 25%;
}

.app-item-box:hover {
    background-color: rgba(255, 255, 255, 0.95);
}

@media only screen and (max-width: 768px) {
    .app-item-box {
        width: 45%;
    }
}
  
@media only screen and (max-width: 500px) {
    .app-item-box {
        width: 70%;
    }
}

.app-item-img {
    width: 80%;
    padding: 10%;
    height: auto;
}

.app-item-desc {
    font-size: larger;
    color: black;
    text-align: center;
    padding: 2%;
    text-shadow: 2px 2px 2px #555555;
    font-family: "Trirong", serif;
}

.mail-title {
    font-size: xx-large;
    font-family: "Trirong", serif;
}

a {
    text-decoration: none;
}