@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

* {
    box-sizing: border-box; /*if we add border or padding, it doesn't affect the width of it. */
}

body {
    font-family: 'Roboto', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden; /*don't want scroll bar to appear.*/
    margin: 0px;
    /* background-image: url('backG1.jpg'); */
    /* above image is used to style it */
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    transition: 0.4s ease;
}

/* for blur background */
body::before {
    content: '';
    position: absolute;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.7);
    z-index: -1;
}

/* for light center background */
.slider-container {
    box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16), 0px 3px 6px rgba(0, 0, 0, 0.23);
    height: 70vh;
    width: 70vw;
    position: relative;
    overflow: hidden;
}

.slide {
    opacity: 0;
    height: 100vh;
    width: 100vw;
    background-position: center center;
    background-size: cover;
    position: absolute;
    top: -15vh;
    left: -15vw;
    transition: 0.4s ease;
    z-index: 1;
}

.slide.active {
    opacity: 1;
}

/* arrow to click */
.arrow {
    position: fixed;
    background-color: transparent;
    color: #fff;
    padding: 20px;
    font-size: 30px;
    border: 2px solid orange;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
}

.arrow:focus {
    outline: 0;
}

.left-arrow {
    left: calc(15vw - 69px);
    border-right-color: transparent;
}

.right-arrow {
    right: calc(15vw - 69px);
    border-left-color: transparent;
}