html, body {
  height: 100%;
  margin: 0;
  font-family: "Times New Roman", serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.content {
    flex: 1;
}

img { 
    height: 100%;
}

.img-profile {
    width: 250px;
}

.btn {
    background-color: #6c757d;
    color: #ffffff;
    border: none;
}

.btn:hover {
    background-color: #5a6268;
    color: #ffffff;
}

a {
    color: rgb(26, 13, 171)
}

@media (max-width: 768px) {
    .about {
        text-align: center;
    }
}

@media (max-width: 454px) {
    .responsive-container {
        display: flex;
        flex-direction: column;
    }

    .to-center {
        text-align: center;
    }

    .hide-text span {
        display: none;
    }

    .generator-change-text::after {
        content: "Card generator (GitHub)";
    }

    .tracker-change-text::after {
        content: "Smoking tracker (GitHub)";
    }

    .tracker-google-play-change-text::after {
        content: "Smoking tracker (Google Play)";
    }

    .msr-change-text::after {
        content: "Memo Stick Rescue (GitHub)";
    }
}