.animate-top{
    position:relative;
    animation:animatetop 0.4s
}
@keyframes animatetop{
    from{top:-300px;opacity:0} 
    to{top:0;opacity:1}
}
.modal {
  display: none;
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.275);
}

.modal-content {
  margin: 5% auto;
  width: 500px;
  max-width: 90%;
  background-color: #fff;
  border: 1px solid rgba(0, 0, 0, 0.175);
  border-radius: .3rem;
  outline: 0;
}
.modal-header {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid #e9ecef;
    border-top-left-radius: .3rem;
    border-top-right-radius: .3rem;
}
.modal-title {
    margin-bottom: 0;
    line-height: 1.5;
    margin-top: 0;
    font-size: 1.25rem;
}
.modal-header .close {
    float: right;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
    color: #000;
    text-shadow: 0 1px 0 #fff;
    opacity: .5;
    padding: 1rem;
    margin: -1rem -1rem -1rem auto;
    background-color: transparent;
    border: 0;
}
.close:not(:disabled):not(.disabled) {
    cursor: pointer;
}

.modal-body {
    flex: 1 1 auto;
    padding: 1rem;
}
.modal-body p {
    margin-top: 0;
    margin-bottom: 1rem;
}
.modal-footer {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: end;
    -ms-flex-pack: end;
    justify-content: flex-end;
    padding: 1rem;
    border-top: 1px solid #e9ecef;
}
.modal-footer>*{
    margin: 5px;
}

/* buttons */
.btn {
    display: inline-block;
    font-weight: 400;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    border: 1px solid transparent;
    padding: .375rem .75rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: .25rem;
    cursor: pointer;
}
.btn:focus, .btn:hover {
    text-decoration: none;
}
.btn-primary {
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}
.btn-primary:hover {
    color: #fff;
    background-color: #0069d9;
    border-color: #0062cc;
}
.btn-secondary {
    color: #fff;
    background-color: #7c8287;
    border-color: #7c8287;
}
.btn-secondary:hover {
    color: #fff;
    background-color: #6c757d;
    border-color: #6c757d;
}