body{
font-family: 'Segoe UI';
background-color: #e8e8e8;
}
caption{
    font-size: 2rem;
    font-weight: bold;
    padding: 15px;
}
th {
    color: white;
    background-color: blue;
}

table{
    border: #d8d8d8 ;
    border-width:2px;
    border-style: solid;
    border-collapse: collapse;
    margin: 0 auto;
    box-shadow: 0px 0px 50px #7b7a7a;
    width:50%;
}
th, td {
    border: 2px solid white;
    padding: 15px;
    font-size: 1em;
}
tr {
    background-color: #bfbfbf;
}

tr:nth-child(odd){
    background-color: #dbdbdb;
}
.container {
    max-width: 600px;
    box-sizing: border-box;
    background-color: white;
    margin: 50px auto 30px;
    padding: 20px;
    border-radius: 20px;
    box-shadow: 0px 0px 50px #7d7b7b;
}
form{  
    flex-direction: column;
    display: flex;
}
label{
    margin-top: 15px;
    font-weight: bold;
}
h1{
    text-align: center;
    color:#2d5372;
}
input, select, textarea {
    border: 1px solid #c9c9c9;
    margin-top: 5px;
    padding: 10px;
    border-radius: 5px;
    font-size: 1em;
}
button{
    font-size: 15px;
    margin-top: 15px;
    padding:15px;
    color:#ffffff;
    background-color: #3c86c3 ;
    border: none;
    cursor: pointer; /**chuyen con chuot thanh con tro**/
    border-radius: 5px;
}

button:hover {
background-color: #2b608b;
}