html{
    scroll-behavior: smooth;
}
body{
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    background-color: wheat;
    width: calc(5*100%);
}

.main-content h2{
    font-size: 50px;
}
header{
    width: 100%;
    text-align: left;
    color: white;
    position: fixed;
    font-size: 20px;
    height: 150px;
    background: black;
    display: table;
    top: 0;
    left: 0;
}
.main-content p{
    font-size: 20px;
}
.wrap{
    margin: 0 auto;
    height: 100%;
}
img{
    margin: 0px 40px 20px 0;
    float:left;
 }

p{
    text-align: justify;
}

a{
    text-decoration: none;
    color: darkslateblue;
}

a:hover{
    color: slateblue;
}

footer p{
    color: white;
    margin: 30px 2%;
}
footer{
    clear:both;
    position: fixed;
   width:100%;
   vertical-align: bottom; 
   background: black;
   display: table;
   vertical-align: middle;
   margin:0 auto;
   height: 80px;
   margin-top:-80px;
   bottom: 0px;
   left: 0px;
}


.main-content{
    height: 900px;
}
header h1{
    position: fixed;
}

.menu{
    text-align: center;
    position: fixed;
    float: left;
    margin: 10px 0;
    padding: 15px 0 30px;
    width: 850px;
    top: 40px;
}

.list_menu{
    list-style: none;
}

.list_menu li{
    margin: 10px;
    float: left;
    width: 140px;
}

.list_menu li a{
    padding: 10px;
    display: block;
    color: white;
    background-color: slateblue;
    border-radius: 30px;
}

.list_menu li a:hover{
    color: slateblue;
    background-color: white;
    transition: 0.2s;
}

.section{
    width: calc(100%/5);
    float: left;
    margin: 0;
    margin-right: 0;
    box-sizing: border-box;
    padding: 150px 2% 0;
}

.arrow{
    color: slateblue;
    position: fixed;
    bottom: 100px;
    right: 30px;
    font-size: 45px;
    background-color: white;
    border-radius: 30px;
    display: flex;
    justify-content: center;
    text-align: center;
    margin: 0 auto;
    width: 60px;
    height: 60px;
}


.arrow:hover{
    background-color: slateblue;
    color: white;
    transition: 0.2s;
}

.arrow:active{
    transform: scale(1.1);
}