/* Main Contents - Start*/

main {
    margin-top: 20px;
}

.presentation {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -ms-flex-direction: row;
    flex-direction: row;
    -ms-flex-pack: distribute;
    justify-content: space-around;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    padding: 20px;
}

.introduction {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    text-align: center;
}

    .introduction > h2 {
        margin: 20px;
        font-size: 36px;
    }

    .introduction > p {
        margin-bottom: 24px;
        text-align: center;
    }

    .introduction > button {
        background-color: transparent;
        border: 2px solid rgb(59, 226, 255);
        font-size: 18px;
        width: 200px;
        height: 50px;
    }

        .introduction > button:hover {
            background-color: rgb(183, 244, 255);
            cursor: pointer;
        }

.intro-image {
    height: 40vh;
}

    .intro-image img {
        height: 90%;
    }


@media screen and (max-width:768px) {
    .intro-image {
        display: none;
    }
}


/* IE10+ */
@media screen and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    
}

@media screen and (max-width:768px) and (-ms-high-contrast: none), (-ms-high-contrast: active) {

    .introduction h3 {
        width: 200px;
    }

    .intro-image {
        display: none;
    }
}

/* Main Contents - End*/