body {
    text-align: center;
    font-family: 'Times New Roman', Times, serif, sans-serif;
    background-color: #ffffff
   
}
header {
    background-color: #5f86a4;
    color: white;
    padding: 20px 0;
}
.buttons {
    margin-top: 25px;
}
.buttons a {
    margin: 10px;
    padding: 10px 25px;
    background-color: #6289ac;
    color: white;
    border-radius: 5px;
    font-size: 18px;
}
.buttons a:hover {
    background-color: #4d6175;
}

.button {
    padding: 10px 20px;
    font-size: 16px;
    background-color: #5885b2;
    color: white;
    border-radius: 5px;
    display: inline-block;
    cursor: pointer;
}
.button:hover {
    background-color: #457ea9;
}
.buttons {
    margin-top: 30px;
}
img {
    width: 30%;
    text-align: center;
    margin-top: auto;
  }
  
.button5 {border-radius: 5px;}
  
tr:hover {
    background-color: #7e8e97;
}
.hr {
width: 100%;
background-color: #457ea9;

}
.obr1 {
    width: 20%;
    text-align: center;
}
.obr2 {
    width: 20%;
    margin-right: 30px;
}
.obr3 {
    width: 30%;
}
.obr4 {
    width: 45%;
}
.obr5 {
    width: 37%;
}

table {
    margin: auto;
}
a
{
    text-decoration: none;
}