while writting the code it always forget to complete it at last

[PRANJALRANA11]

for eg this code:
/* Navbar */
.navbar {
background-color: #f8f9fa;
padding: 0.5rem 1rem;
}

.navbar-brand {
color: #212529;
font-weight: bold;
text-decoration: none;
}

.navbar-toggler {
border: none;
padding: 0.25rem 0.5rem;
background-color: transparent;
}

.navbar-toggler-icon {
display: inline-block;
width: 1.5em;
height: 1.5em;
vertical-align: middle;
content: "";
background-repeat: no-repeat;
background-position: 50%;
background-size: 100% 100%;
background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='rgba(0, 0, 0, 0.5)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar-collapse {
display: flex;
flex-direction: row;
align-items: center;
justify-content: flex-start;
}

.navbar-nav {
margin-left: auto;
}

.nav-item {
display: inline-block;
padding: 0.5rem 1rem;
}

.nav-link {
color: #212529;
text-decoration: none;
}

.nav-item.active .nav-link {
font-weight: bold;
}

.dropdown-menu {
position: absolute;
top: 100%;
left: 0;
z-index: 1000;
display: none;
min-width: 10rem;
padding: 0.5rem 0;
margin: 0.125rem 0 0;
font-size: 1rem;
color: #212529;
text-align: left;
background-color: #fff;
background-clip: padding-box;
border: 1px solid rgba(0, 0, 0, 0.15);
border-radius: 0.25rem;
}

.dropdown-item {
display: block;
width: 100%;
padding: 0.25rem 1.5rem;
clear: both;
font-weight: 400;
color: #212529;
text-align: inherit;
white-space: nowrap;
background-color: transparent;
border: 0;
}

.dropdown-divider {
height: 0;
margin: 0.5rem 0;
overflow: hidden;
border-top: 1px solid #e9ecef;
}

.nav-link.disabled {
opacity: 0.65;
pointer-events: none;
}

.form-inline {
display: flex;
flex-flow: row wrap;
align-items: center;
}

.form-control {
display: block;
width: 100%;
padding: 0.375rem 0.75rem;
font-size: 1rem;
line-height: 1.5;
color: #212529;
background-color: #fff;
background-clip: padding-box;
border: 1px solid #ced4da;
border-radius: 0.25rem;
}

.btn {
display: inline-block;
font-weight: 400;
color: #212529;
text