html, body {
    height: 100%;
    background-color: #FFFFFF;
}

#search_box input{
    display: block;
    float: left;
    width: 120px;
    height: 40px;
    font-size: larger;
    margin: 0 30px;
    border: solid 2px lightgray;
    text-align: center;
    border-radius: 5px;
}

#search_box input:hover{
    border: solid 2px #3BAFFA;
}

#add_user {
    display: block;
    float: right;
    width: 120px;
    height: 40px;
    font-size: larger;
    margin: 0 30px;
    border: solid 2px lightgray;
    text-align: center;
    border-radius: 5px;
}

#add_user:hover {
    background-color: #3BAFFA;
}

#keeper_list {
    width: 100%;
    display: block;
    float: left;
    border-spacing: 0;
}

#head {
    background-color: #3BAFFA;
    height: 40px;
    font-size: 1.5vw;
    color: #FFFFFF;
    line-height: 40px;
}

#head span{
    width: 8%;
    display: block;
    float: left;
    text-align: center;
}

.line {
    width: 100%;
    display: block;
    float: left;
    line-height: 40px;
    font-size: 1vw;
    border-bottom: solid 1px lightgray;
}

.line span {
    width: 8%;
    height: 40px;
    display: block;
    float: left;
    text-align: center;
}

.line button {
    border-radius: 5px;
    font-size: 0.5vw;
    max-height: 2vw;
}

.line button:hover {
    background-color: #3BAFFA;
}