*{
    padding: 0;
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
}

.btn{
    border: none;
    text-align: center;
}
a, a:visited{
    text-decoration: none;
    animation: all 0.5s;
}
a:hover{
    font-weight: bold;
}

.btn_green{
    color: white;
    background-color: #5AC3B0;
}
.btn_red{
    color:white;
    background-color: #BD1E51;
}
.btn_blue{
    color: white;
    background-color: #274385;
}

.btn_small{
    padding: 6px 8px;
    border-radius: 6px;
    font-size: 1.1rem;
}
.btn_mid{
    padding: 0.5rem 0.7rem;
    border-radius: 0.8rem;
    font-size: 1.1rem;
}
.btn_big{
    padding: 16px 18px;
    border-radius: 4px;
    font-size: 1.1rem;
}
img{
    width: 500px;
}