styles.css

/* Made with love by Mutiullah Samim*/

@import url('https://fonts.googleapis.com/css?family=Numans');

html,body{
background-image: url('https://images.unsplash.com/photo-1517488629431-6427e0ee1e5f');
background-size: cover;
background-repeat: no-repeat;
height: 100%;
font-family: 'Numans', sans-serif;
}

.container{
height: 100%;
align-content: center;
display: flex;
padding:100px;
}

.card_login{
height: 370px;
margin-top: auto;
margin-bottom: auto;
width: 400px;
background-color: rgba(0,0,0,0.5) !important;
}

.card_sign_up{
height: 180px;
margin-top: auto;
margin-bottom: auto;
width: 400px;
background-color: rgba(0,0,0,0.5) !important;
}

.card_forgot_password{
height: 140px;
margin-top: auto;
margin-bottom: auto;
width: 400px;
background-color: rgba(0,0,0,0.5) !important;
}

.card-header h3{
color: white;
}

.social_icon{
position: absolute;
right: 20px;
top: -45px;
}

.input-group-prepend span{
width: 50px;
background-color: #FFC312;
color: black;
border:0 !important;
}

input:focus{
outline: 0 0 0 0  !important;
box-shadow: 0 0 0 0 !important;

}

.remember{
color: white;
}

.remember input
{
width: 20px;
height: 20px;
margin-left: 15px;
margin-right: 5px;
}

.login_btn{
color: black;
background-color: #FFC312;
width: 100px;
}

.login_btn:hover{
color: black;
background-color: white;
}

.links{
color: white;
}

.links a{
margin-left: 4px;
}

h1{
font-size: 40px;
color:#000000;
padding: 40px;
background-color: #FFC312;
width:300px;
height: 100px;
left: 20px;
}

h1:link{
    color:#000000;
    text-decoration:none; 
}

h1:active{
    color:#000000;
    text-decoration:none;
}

h1:visited{
    color:#000000;
    text-decoration:none; 
}

h1:hover{
    color:#000000;
    text-decoration:none;
}

h1:visited{
    color:#000000;
    text-decoration:none;
}

h3{
text-align: center;    
}

.container {
display: flex;
}
  
.functions {
flex-basis: 30%;
padding-right: 20px;
}

.row-gallery {
flex-basis: 70%;
}

.hide {
display: none;
}

.menu-body {
overflow-y: scroll;
-webkit-overflow-scrolling: touch;
position: relative;
padding: 0 20px 20px 20px;
height: calc(100vh - 52px);
padding-bottom: 150px;
}
.site-nav-wrap {
padding: 0;
margin: 0;
list-style: none;
position: relative;
}

.site-nav-wrap > li {
display: block;
position: relative;
float: left;
width: 100%;
}

.site-nav-wrap a {
padding: 10px 20px;
display: block;
position: relative;
color: #212529;
}

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

:root{
    /* color type A */
    --line_color : #555555 ;
    --back_color : #FFECF6  ;

    /* color type B */
    /* --line_color : #1b1919 ;
    --back_color : #E9ECFF  ; */

    /* color type C */
    /* --line_color : #00135C ;
    --back_color : #DEFFFA  ; */
}

.upload {
background-image: hide;
background-color: white;
display: flex;
justify-content: center;
align-items: center;
font-family: 'Numans', sans-serif;
}

.button-container {
    display: flex;
    flex-direction: column;
  }

.buttonbig {
display: inline-block;
background-color: #24a0ed;
padding: 30px;
width: 200px;
height:100px;
color: #000000;
text-align: center;
font-size: 28px;
cursor: pointer; /* add this line */
margin: 5px; /* add this line */
order: -1;
font-family: 'Numans', sans-serif;
}

.buttonsmall {
display: inline-block;
background-color: #FFC312;
padding: 20px;
width: 200px;
height:50px;
color: #000000;
text-align: center;
font-size: 12px;
cursor: pointer; /* add this line */
margin: 5px; /* add this line */
font-family: 'Numans', sans-serif;
}

.buttonkeep {
    display: inline-block;
    background-color: #48A14D;
    padding: 20px;
    width: 200px;
    height:50px;
    color: #000000;
    text-align: center;
    font-size: 12px;
    cursor: pointer; /* add this line */
    margin: 5px; /* add this line */
    font-family: 'Numans', sans-serif;
    }

.buttondelete {
display: inline-block;
background-color: #8B0000;
padding: 20px;
width: 200px;
height:50px;
color: #000000;
text-align: center;
font-size: 12px;
cursor: pointer; /* add this line */
margin: 5px; /* add this line */
font-family: 'Numans', sans-serif;
}

.image-buttons {
    display: flex;
    justify-content: center;
    margin-top: 10px;
}
  
.image-buttons button {
    margin: 0 5px;
}