*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    margin: 0;
}

#holder {
    display: flex;
    flex-wrap: wrap;
    margin: 0 auto 0 auto;
}

header {
    background: #155E95;
    margin: 0;
    display: flex;
    margin: 0 auto 0 auto;
    width: 100%;
}

header a {
    color: #FFF;
    text-decoration: none;
    padding-left: 1rem;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

header a:hover, header a:active, header a:focus {
    color: #000;
}

header h4 {
    margin: 0;
    padding:0.75rem;
}

.title {
    width:50%;
}

.intern {
    flex: 1;
    text-align: right;
}

nav {
    text-align: center;
    background: #D5D5D5;
    margin: 0;
    width: 100%;
}

nav ul {
    padding: 0.4rem;
    margin: 0 10rem;
    display: flex;
}

nav ul li {
    list-style-type: none;
    flex: 1; 
}

nav ul a {
    display: inline-block;
    color: #000;
    font-weight: bold;
    text-decoration: none;
}

main {
    flex: 1;
}

.topic {
    background-image: url("/images/topic-sw-temp.jpg");
    background-size: cover;
    background-repeat: no-repeat;
}

.overlay {
    background-color: rgba(0,0,0,0.7);
    display: flex;
}

.logo {
    width: 40%;
    margin: 10vw 0 10vw 0;
    text-align: right;
}

.logo img {
    max-width: 25vw;
}

.alarmierung {
    margin: auto 0 auto 5vw;
}

.alarmierung h1, h2 {
    font-size: 3vw;
    margin: 0;
    text-transform: uppercase;
    color: #FF0000;
}

.alarmierung h5 {
    color: #fff;
    font-size: 1vw;
}

.alarmierung h6 {
    margin: 0;
    color:#FFF;
}

.alarmierung h2 a {
    text-decoration: none; 
    color:#FF0000;
}

.alarmierung h2 a:hover, .alarmierung h2 a:active, .alarmierung h2 a:focus {
    color: red;
}

button {
    background-color: #155E95;
    border: none;
    border-radius: 4px;
    padding: 0.75rem;
    font-size: 1rem;
}

button a {
    color: #FFF;
    font-weight: bold;
    text-decoration: none;
}

.button a:hover, .button a:active, .button a:focus {
    color: #fff;
}

button h3 {
    margin: 0;
}

@media screen and (max-width: 40em) {

    .title h4 {
        font-size: 0.5rem;
    }

    .title a {
        padding-left: 0.5rem;
    }

    header {
        display: block;
    }

    #inEntwicklung {
        font-size: 0.5rem;
    }

    .alarmierung {
        margin: 0;
    }

    .alarmierung h1 {
        font-size: 1.7rem;
    }

    .alarmierung h2 {
        font-size: 1.7rem;
    }

    .alarmierung h5 {
        font-size: 0.7rem;
    }

    .alarmierung h6 {
        font-size: 0.8rem;
    }

    button {
        font-size: 0.9rem;
        padding: 0.5rem;
    }

    .logo {
        width: 100%;
        text-align: center;
        margin: 0;
        padding-top: 1rem
    }

    .alarmierung {
        margin-top: 0.5rem;
    }

    .overlay {
        display: block;
        text-align: center;
        padding-bottom: 1rem;
    }



}