body{
    font-family:Arial,sans-serif;
    line-height:1.6;
    margin:0;
    padding:0;
    background-color:#2C3E50;
    color:#ecf0f1;

}
.container{
    width:80%;
    margin:0 auto;
    overflow:hidden;


}
header{
    background:#3498db;
    color:#fff
    padding-top:30px;
    min-height:70px;
    border-buttom:#2980b9 3px solid;

}
header h1{
    text-align:center;
    text-transform:uppercase;
    margin:0;
    font-size:50px;
}
nav{
    text-align:center;
    font-size:20px;
    margin:20px 0 0 0;

}
nav a{
    color:#fff;
    text-decoration:none;
    margin 0 15px;

}
nav a:hover{
    text-decoration:underline;

}
section{
    padding:20px;
    margin:20px 0;
    background:#ecf0f1;
    color:#2c3e50;
    box-shadow:0 0 10px rgba(0,0,0,0.1);
}
img{
    max-width:100%;
    height:auto;
    display:block;
    margin:0 auto;
}







table{
    width:100%;
    border-collapse:collapse;
    margin:20px 0;
}
table,th,td{
    border:1px solid #bdc3c7;
}
th,td{
    padding:12px;
    text-align:left;
}
th{
    background-color:#3498db;
    color:#fff;
}
table,a{
    a:link{color:blue;}
    a:visited{color:blue;}
    a:hover{color:red;}
}



form{
    display:flex;
    flex-direction:column;

}
label{
    margin:10px 0 5px 0;
    font-size:20px
}
input,textarea{
    padding:10px;
    margin-bottom:10px;
    border:1px solid #bdc3c7;
    border-radius:5px;
    background-color:#fff;
    color:#2c3e50;
}


button{
    padding:30px 30px;
    background-color:#3498db;
    color:#fff;
    border:none;
    border-radius:20px;
    cursor:pointer;
    font-size:30px;
}
button:hover{
    background-color:#2980b9;
}

footer{
    background-color:#3498db;
    text-align:center;
    margin:20px 0 0;
    color:#fff;
    font-size:20px;
}
footer:hover{
    color:#2980b9;
}