body{
    margin: 0;
    background-color: #333333;
}
.all{
    width: 100%;
    height: 100%;
    background-color: green;
    display: grid;
    grid-template-columns: 200px 1fr;
}
.left{
    background-color: #008f8f;
    position: relative;
    height: 100%;
    text-align: center;
    
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
}
.left button{
    background-color: rgb(30, 80, 80, 0.8); 
    border-style: none;
    height: 50px;
    width: 180px;
    font-size: larger;
    margin-top: 5px;
}

.right{
    background-color: red;
    height: 100%;
}

.header{
    height: 100px;
    background-color: green;
    position: fixed;
    margin-top: 0;
    width: 100%;
}
.head_top{
    background-color: teal;
    height: 70%;
    text-align: center;
}
.head_top h1{
    margin-top: 0;
    padding-top: 5px;
}
.head_bot{
    background-color: #007070;
    height: 30%;
    padding-top: 5px;
    padding-bottom: 0px;
    padding-left: 5px;
}
.head_bot button{
    background-color: rgb(30, 80, 80, 0.8); 
    border-style: none;
    height: 25px;
    min-width: 60px;
}

.contents{
    margin-top: 105px;
    height: auto;
    background-color: #585858;
    text-align: center;
    color: white;
}
.copyright{
    height: 100px;
    background-color: #484848;
    color: white;
    text-align: center;
    padding: 10px;
}