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

body{
    font-family: 'Roboto', sans-serif;
    font-size: 20px;
    margin: 0px;
}

header{
    background-image: url(images/head.png);
    background-attachment: fixed;
    display: flex;
    background-repeat:repeat-x;
    
    width: 100%;
    height: 700px;
    
}

h1{
    margin-top: 625px;
    margin-left: 50px;
    color: white;
}

nav{
    margin-top: 30px;
    display: flex;
    justify-content: space-around;
    width: 100%;
    height: 50px;
}

#linkUp{
    position: fixed;
    bottom: 100px;
    right: 20px;
    text-decoration: none;
}

.goUp{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100px;
    height: 30px;
    border-style: solid;
    border-radius: 55px;
    border-width: 4px;
    border-color: orange;
    color: white;
    background-color: orange;
}

a{
    text-decoration: none;
}

.link{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 30px;
    width: 240px;
    transition: 0.5s;
    background-color: orange;
    text-decoration: none;
    border-style: solid;
    border-radius: 55px;
    
}

.link:hover{
    box-shadow: 0px 3px 3px 3px lightgray;
}

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.line{
    width:100%;
    height: 20px;
    background-color: orange;
}

.disp{
    display:flex;
    justify-content: center;
    margin-left: 30px;
    margin-right: 30px;
    
}

main{
    width: 1100px;
    margin: 30px auto;
}

.help:hover sidebar{
    display:block;
    position: absolute;
    background-position: left;
}

span:hover::before {
    content: '';
    position: absolute;
    top: 1.4em; left: 20px;
    width: 0; height: 0; 
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 10px solid #3989c9;
}

sidebar {
    display: none;
    width: 400px;
    background: #3989c9; 
    color: #fff; 
    border-radius: 5px; 
    font-size: 12px;
    line-height: 1.4em;
    font-style: italic;
}

span{
    color:#3989c9;
    border-bottom: 1px dotted #000080;
    border-bottom-color: #3989c9;
}

#frame {
    border-style: solid;
    border-color: orange;
    border-radius: 10px;
}




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footer{
    background-color: gainsboro;
    display: flex;
    justify-content:space-around;
    align-items: center;
    height: 150px;
    width: 100%;
}

.logo_1253{
    background-image: url(images/logo_1253.png);
    background-size: cover;
    height: 100px;
    width: 100px;
    transition: 0.3s;
}

.logo_1253:hover{
    transform: scale(1.2);
}