*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.txt{
    font-weight: bolder;
    color: #666666;
}
.txt::first-letter{
    color: #dc3545;
    font-size: larger;
}

.shape{
    width: 100%;
    height: 300px;
    padding: 10px;
    margin-bottom: 25px;
}

.box{
    width: 100%;
    padding: 50px;
    margin: auto;
    text-align: center;
    border-radius: 44px;
    background: linear-gradient(145deg, #ffffff, #e6e6e6);
    box-shadow:  15px 15px 12px #666666, 
                 -15px -15px 12px #ffffff;
}
.credits{
text-align: center;
margin-top: 100px;
color: #198754;
}

h1{
    margin-top: 3rem;
    margin-bottom: 1rem;
    text-align: center;
    font-weight: bolder;
}

h1::first-letter{
    font-size: 50px;
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color:#dc3545;
}

h3, h5, h6{
    line-height: 2.5rem;
}

.loader{
    background-color: black;
    position: fixed;
    top: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.75s, visibility 0.75s;
    z-index: 999;
}
.loader::after{
    content: "";
    width: 50px;
    height: 50px;
    border-radius: 50%;
    /* box-shadow:  5px 5px 12px #161515,
                 -5px -5px 12px blueviolet; */
    animation: loading 0.9s ease-in-out infinite;
}

.loaderHidden{
    opacity: 0;
    visibility: hidden;
}

@keyframes loading {
    0%{
        background-color: purple;
    }
    50%{
        transform: scale(2,2);
    }
    100%{
        transform: scale(-2, -2);
    }
}


  .image{
    height: 200px;
    margin-top: 30px;
    margin-left: 25%;
    background-image: url("../images/image1.png");
    background-repeat: no-repeat;
    animation: imageLoad 10s ease-in-out infinite;
  }

  @keyframes imageLoad {
    0%{
        background-image: url("../images/image1.png");
    }
    25%{
        background-image: url("../images/image2.png");
    }
    50%{
        background-image: url("../images/image3.png");
    }
    75%{
        background-image: url("../images/image4.png");
    }
    100%{
        background-image: url("../images/image5.png");
    }
  }