:root {
    --main-bg-color: #9b9a9a;
    --link-color: darkblue;
    --link-color-hover: #49497b;
}

body {
    background-color: var(--main-bg-color);
}

a{
    color: var(--link-color);
}

a:hover{
    color: var(--link-color-hover);
}

.header{
    margin-top: 8px;
    margin-bottom: 48px;
    padding: 24px;
    box-shadow: rgba(0, 0, 0, 0.25) 0px 54px 55px, rgba(0, 0, 0, 0.12) 0px -12px 30px, rgba(0, 0, 0, 0.12) 0px 4px 6px, rgba(0, 0, 0, 0.17) 0px 12px 13px, rgba(0, 0, 0, 0.09) 0px -3px 5px;
    border-radius: 25px;
}

.center {
    text-align: center;
}

.text-justify{
    text-align: justify;
}
div.back-icon{
    position: absolute;
    top: 25px;
    left: 1%;
}

div.back-icon img{
    width: 50px;
    height: 50px;
}